正常的CNN，其輸入是圖像，其輸出是一個label整數，其正是用Caffe的底層數據Datum（Image，LMDB，LevelDB的基礎）來表示

<code class="hljs vala has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;">message Datum {optional <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int32</span> channels = <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1</span>;optional <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int32</span> height = <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2</span>;optional <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int32</span> width = <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">3</span>;<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// the actual image data, in bytes</span>optional bytes data = <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">4</span>;optional <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int32</span> label = <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">5</span>;<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// Optionally, the datum could also hold float data.</span>repeated <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">float</span> float_data = <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">6</span>;<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// If true data contains an encoded image that need to be decoded</span>optional <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">bool</span> encoded = <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">7</span> [<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">default</span> = <span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">false</span>]; }</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li></ul><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li></ul>

當數據讀入的時候，其是通過

<code class="hljs scss has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-function" style="box-sizing: border-box;">CVMatToDatum(cv_img, datum)</span>; datum-><span class="hljs-function" style="box-sizing: border-box;">set_label(label)</span>; </code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li></ul><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li></ul>

所以，Image輸入，LevelDB輸入，LMDB輸入，不能解決多輸出問題（改動代碼，對其它代碼的影響比較大）

在HDF5作為輸入中，其是接受多輸出的，但其只能接受double和float的輸入，但是我們的圖像一般是0–255的，所以其實只要用int8 就可以滿足了，可以節省4-8倍的空間。

而hdf5只能是float和double的原因在于，其是直接將4維數組轉化為blob數據結構。

<code class="hljs css has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"> <span class="hljs-tag" style="color: rgb(0, 0, 0); box-sizing: border-box;">blob-</span>><span class="hljs-tag" style="color: rgb(0, 0, 0); box-sizing: border-box;">Reshape</span>(<span class="hljs-tag" style="color: rgb(0, 0, 0); box-sizing: border-box;">dims</span><span class="hljs-attr_selector" style="color: rgb(0, 136, 0); box-sizing: border-box;">[0]</span>,(<span class="hljs-tag" style="color: rgb(0, 0, 0); box-sizing: border-box;">dims</span><span class="hljs-class" style="box-sizing: border-box; color: rgb(155, 112, 63);">.size</span>() > 1) ? <span class="hljs-tag" style="color: rgb(0, 0, 0); box-sizing: border-box;">dims</span><span class="hljs-attr_selector" style="color: rgb(0, 136, 0); box-sizing: border-box;">[1]</span> : 1,(<span class="hljs-tag" style="color: rgb(0, 0, 0); box-sizing: border-box;">dims</span><span class="hljs-class" style="box-sizing: border-box; color: rgb(155, 112, 63);">.size</span>() > 2) ? <span class="hljs-tag" style="color: rgb(0, 0, 0); box-sizing: border-box;">dims</span><span class="hljs-attr_selector" style="color: rgb(0, 136, 0); box-sizing: border-box;">[2]</span> : 1,(<span class="hljs-tag" style="color: rgb(0, 0, 0); box-sizing: border-box;">dims</span><span class="hljs-class" style="box-sizing: border-box; color: rgb(155, 112, 63);">.size</span>() > 3) ? <span class="hljs-tag" style="color: rgb(0, 0, 0); box-sizing: border-box;">dims</span><span class="hljs-attr_selector" style="color: rgb(0, 136, 0); box-sizing: border-box;">[3]</span> : 1);</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li></ul><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li></ul>

雖然Blob是一個模板，但是，其unsigned int 和int的類型都沒有實現

<code class="hljs cpp has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">template</span> <> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span> Blob<<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">unsigned</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span>>::Update() { NOT_IMPLEMENTED; } <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">template</span> <> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span> Blob<<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span>>::Update() { NOT_IMPLEMENTED; }</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li></ul><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li></ul>

沒有實現的原因，是因為輸入數據和里面的所有的中間數據都采用相同的結構（Blob），所以如果用int來保存的化，就沒有辦法進行求梯度等操作。

<code class="hljs cpp has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//The "update" method is used for parameter blobs in a Net, which are stored</span> <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//as Blob<float> or Blob<double> -- hence we do not define it for</span> <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//Blob<int> or Blob<unsigned int>.</span><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">template</span> <> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">unsigned</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span> Blob<<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">unsigned</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span>>::asum_data() <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">const</span> {NOT_IMPLEMENTED;<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>; }<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">template</span> <> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span> Blob<<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span>>::asum_data() <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">const</span> {NOT_IMPLEMENTED;<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>; } <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">template</span> <> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">unsigned</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span> Blob<<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">unsigned</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span>>::asum_diff() <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">const</span> {NOT_IMPLEMENTED;<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>; }<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">template</span> <> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span> Blob<<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span>>::asum_diff() <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">const</span> {NOT_IMPLEMENTED;<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>; } <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">template</span> <> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">unsigned</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span> Blob<<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">unsigned</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span>>::sumsq_data() <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">const</span> {NOT_IMPLEMENTED;<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>; }<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">template</span> <> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span> Blob<<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span>>::sumsq_data() <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">const</span> {NOT_IMPLEMENTED;<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>; } <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">template</span> <> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">unsigned</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span> Blob<<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">unsigned</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span>>::sumsq_diff() <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">const</span> {NOT_IMPLEMENTED;<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>; }<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">template</span> <> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span> Blob<<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span>>::sumsq_diff() <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">const</span> {NOT_IMPLEMENTED;<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>; } <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">template</span> <> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span> Blob<<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">unsigned</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span>>::scale_data(<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">unsigned</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span> scale_factor) {NOT_IMPLEMENTED; }<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">template</span> <> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span> Blob<<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span>>::scale_data(<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span> scale_factor) {NOT_IMPLEMENTED; } <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">template</span> <> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span> Blob<<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">unsigned</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span>>::scale_diff(<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">unsigned</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span> scale_factor) {NOT_IMPLEMENTED; }<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">template</span> <> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span> Blob<<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span>>::scale_diff(<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span> scale_factor) {NOT_IMPLEMENTED; }</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li><li style="box-sizing: border-box; padding: 0px 5px;">18</li><li style="box-sizing: border-box; padding: 0px 5px;">19</li><li style="box-sizing: border-box; padding: 0px 5px;">20</li><li style="box-sizing: border-box; padding: 0px 5px;">21</li><li style="box-sizing: border-box; padding: 0px 5px;">22</li><li style="box-sizing: border-box; padding: 0px 5px;">23</li><li style="box-sizing: border-box; padding: 0px 5px;">24</li><li style="box-sizing: border-box; padding: 0px 5px;">25</li><li style="box-sizing: border-box; padding: 0px 5px;">26</li><li style="box-sizing: border-box; padding: 0px 5px;">27</li><li style="box-sizing: border-box; padding: 0px 5px;">28</li><li style="box-sizing: border-box; padding: 0px 5px;">29</li><li style="box-sizing: border-box; padding: 0px 5px;">30</li><li style="box-sizing: border-box; padding: 0px 5px;">31</li><li style="box-sizing: border-box; padding: 0px 5px;">32</li><li style="box-sizing: border-box; padding: 0px 5px;">33</li><li style="box-sizing: border-box; padding: 0px 5px;">34</li><li style="box-sizing: border-box; padding: 0px 5px;">35</li><li style="box-sizing: border-box; padding: 0px 5px;">36</li><li style="box-sizing: border-box; padding: 0px 5px;">37</li><li style="box-sizing: border-box; padding: 0px 5px;">38</li><li style="box-sizing: border-box; padding: 0px 5px;">39</li><li style="box-sizing: border-box; padding: 0px 5px;">40</li><li style="box-sizing: border-box; padding: 0px 5px;">41</li><li style="box-sizing: border-box; padding: 0px 5px;">42</li><li style="box-sizing: border-box; padding: 0px 5px;">43</li><li style="box-sizing: border-box; padding: 0px 5px;">44</li><li style="box-sizing: border-box; padding: 0px 5px;">45</li><li style="box-sizing: border-box; padding: 0px 5px;">46</li><li style="box-sizing: border-box; padding: 0px 5px;">47</li><li style="box-sizing: border-box; padding: 0px 5px;">48</li><li style="box-sizing: border-box; padding: 0px 5px;">49</li><li style="box-sizing: border-box; padding: 0px 5px;">50</li><li style="box-sizing: border-box; padding: 0px 5px;">51</li><li style="box-sizing: border-box; padding: 0px 5px;">52</li><li style="box-sizing: border-box; padding: 0px 5px;">53</li><li style="box-sizing: border-box; padding: 0px 5px;">54</li><li style="box-sizing: border-box; padding: 0px 5px;">55</li><li style="box-sizing: border-box; padding: 0px 5px;">56</li><li style="box-sizing: border-box; padding: 0px 5px;">57</li><li style="box-sizing: border-box; padding: 0px 5px;">58</li><li style="box-sizing: border-box; padding: 0px 5px;">59</li><li style="box-sizing: border-box; padding: 0px 5px;">60</li><li style="box-sizing: border-box; padding: 0px 5px;">61</li><li style="box-sizing: border-box; padding: 0px 5px;">62</li><li style="box-sizing: border-box; padding: 0px 5px;">63</li><li style="box-sizing: border-box; padding: 0px 5px;">64</li><li style="box-sizing: border-box; padding: 0px 5px;">65</li><li style="box-sizing: border-box; padding: 0px 5px;">66</li></ul><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right; background-color: rgb(238, 238, 238);"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li><li style="box-sizing: border-box; padding: 0px 5px;">18</li><li style="box-sizing: border-box; padding: 0px 5px;">19</li><li style="box-sizing: border-box; padding: 0px 5px;">20</li><li style="box-sizing: border-box; padding: 0px 5px;">21</li><li style="box-sizing: border-box; padding: 0px 5px;">22</li><li style="box-sizing: border-box; padding: 0px 5px;">23</li><li style="box-sizing: border-box; padding: 0px 5px;">24</li><li style="box-sizing: border-box; padding: 0px 5px;">25</li><li style="box-sizing: border-box; padding: 0px 5px;">26</li><li style="box-sizing: border-box; padding: 0px 5px;">27</li><li style="box-sizing: border-box; padding: 0px 5px;">28</li><li style="box-sizing: border-box; padding: 0px 5px;">29</li><li style="box-sizing: border-box; padding: 0px 5px;">30</li><li style="box-sizing: border-box; padding: 0px 5px;">31</li><li style="box-sizing: border-box; padding: 0px 5px;">32</li><li style="box-sizing: border-box; padding: 0px 5px;">33</li><li style="box-sizing: border-box; padding: 0px 5px;">34</li><li style="box-sizing: border-box; padding: 0px 5px;">35</li><li style="box-sizing: border-box; padding: 0px 5px;">36</li><li style="box-sizing: border-box; padding: 0px 5px;">37</li><li style="box-sizing: border-box; padding: 0px 5px;">38</li><li style="box-sizing: border-box; padding: 0px 5px;">39</li><li style="box-sizing: border-box; padding: 0px 5px;">40</li><li style="box-sizing: border-box; padding: 0px 5px;">41</li><li style="box-sizing: border-box; padding: 0px 5px;">42</li><li style="box-sizing: border-box; padding: 0px 5px;">43</li><li style="box-sizing: border-box; padding: 0px 5px;">44</li><li style="box-sizing: border-box; padding: 0px 5px;">45</li><li style="box-sizing: border-box; padding: 0px 5px;">46</li><li style="box-sizing: border-box; padding: 0px 5px;">47</li><li style="box-sizing: border-box; padding: 0px 5px;">48</li><li style="box-sizing: border-box; padding: 0px 5px;">49</li><li style="box-sizing: border-box; padding: 0px 5px;">50</li><li style="box-sizing: border-box; padding: 0px 5px;">51</li><li style="box-sizing: border-box; padding: 0px 5px;">52</li><li style="box-sizing: border-box; padding: 0px 5px;">53</li><li style="box-sizing: border-box; padding: 0px 5px;">54</li><li style="box-sizing: border-box; padding: 0px 5px;">55</li><li style="box-sizing: border-box; padding: 0px 5px;">56</li><li style="box-sizing: border-box; padding: 0px 5px;">57</li><li style="box-sizing: border-box; padding: 0px 5px;">58</li><li style="box-sizing: border-box; padding: 0px 5px;">59</li><li style="box-sizing: border-box; padding: 0px 5px;">60</li><li style="box-sizing: border-box; padding: 0px 5px;">61</li><li style="box-sizing: border-box; padding: 0px 5px;">62</li><li style="box-sizing: border-box; padding: 0px 5px;">63</li><li style="box-sizing: border-box; padding: 0px 5px;">64</li><li style="box-sizing: border-box; padding: 0px 5px;">65</li><li style="box-sizing: border-box; padding: 0px 5px;">66</li></ul>

HDF5最大的缺點在于，因為其是直接將數據轉化為Blob，所以其不能利用所有的DataTransformer功能，因為數據轉換層又是基于Datum或者圖像cv::Mat來轉換.(最近加了直接對Blob的轉換）?
解決方案：?
1. 自己添加一層DataBlob層來實現。?
2. 直接存儲uint8格式，HDF5輸入的時候，強制轉化為float格式即可。

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