CvvImage.h代碼：

1. 
   
2. #pragma?once??
3. #ifndef?CVVIMAGE_CLASS_DEF??
4. #define?CVVIMAGE_CLASS_DEF??
5. #include?"opencv.hpp"??
6. /*?CvvImage?class?definition?*/??
7. class??CvvImage??
8. {??
9. public:??
10. ???CvvImage();??
11. ???virtual?~CvvImage();??
12. ???/*?Create?image?(BGR?or?grayscale)?*/??
13. ???virtual?bool??Create(?int?width,?int?height,?int?bits_per_pixel,?int?image_origin?=?0?);??
14. ???/*?Load?image?from?specified?file?*/??
15. ???virtual?bool??Load(?const?char*?filename,?int?desired_color?=?1?);??
16. ???/*?Load?rectangle?from?the?file?*/??
17. ???virtual?bool??LoadRect(?const?char*?filename,??
18. ??????int?desired_color,?CvRect?r?);??
19. #if?defined?WIN32?||?defined?_WIN32??
20. ???virtual?bool??LoadRect(?const?char*?filename,??
21. ??????int?desired_color,?RECT?r?)??
22. ???{??
23. ??????return?LoadRect(?filename,?desired_color,??
24. ?????????cvRect(?r.left,?r.top,?r.right?-?r.left,?r.bottom?-?r.top?));??
25. ???}??
26. #endif??
27. ???/*?Save?entire?image?to?specified?file.?*/??
28. ???virtual?bool??Save(?const?char*?filename?);??
29. ???/*?Get?copy?of?input?image?ROI?*/??
30. ???virtual?void??CopyOf(?CvvImage&?image,?int?desired_color?=?-1?);??
31. ???virtual?void??CopyOf(?IplImage*?img,?int?desired_color?=?-1?);??
32. ???IplImage*?GetImage()?{?return?m_img;?};??
33. ???virtual?void??Destroy(void);??
34. ???/*?width?and?height?of?ROI?*/??
35. ???int?Width()?{?return?!m_img???0?:?!m_img->roi???m_img->width?:?m_img->roi->width;?};??
36. ???int?Height()?{?return?!m_img???0?:?!m_img->roi???m_img->height?:?m_img->roi->height;};??
37. ???int?Bpp()?{?return?m_img???(m_img->depth?&?255)*m_img->nChannels?:?0;?};??
38. ???virtual?void??Fill(?int?color?);??
39. ???/*?draw?to?highgui?window?*/??
40. ???virtual?void??Show(?const?char*?window?);??
41. ??
42. #if?defined?WIN32?||?defined?_WIN32??
43. ???/*?draw?part?of?image?to?the?specified?DC?*/??
44. ???virtual?void??Show(?HDC?dc,?int?x,?int?y,?int?width,?int?height,??
45. ??????int?from_x?=?0,?int?from_y?=?0?);??
46. ???/*?draw?the?current?image?ROI?to?the?specified?rectangle?of?the?destination?DC?*/??
47. ???virtual?void??DrawToHDC(?HDC?hDCDst,?RECT*?pDstRect?);??
48. #endif??
49. protected:??
50. ???IplImage*??m_img;??
51. };??
52. typedef?CvvImage?CImage;??
53. #endif?
    

CvvImage.cpp代碼：

1. #include?"StdAfx.h"??
2. #include?"CvvImage.h"??
3. //??
4. //?Construction/Destruction??
5. //??
6. CV_INLINE?RECT?NormalizeRect(?RECT?r?);??
7. CV_INLINE?RECT?NormalizeRect(?RECT?r?)??
8. {??
9. ???int?t;??
10. ???if(?r.left?>?r.right?)??
11. ???{??
12. ??????t?=?r.left;??
13. ??????r.left?=?r.right;??
14. ??????r.right?=?t;??
15. ???}??
16. ???if(?r.top?>?r.bottom?)??
17. ???{??
18. ??????t?=?r.top;??
19. ??????r.top?=?r.bottom;??
20. ??????r.bottom?=?t;??
21. ???}??
22. ??
23. ???return?r;??
24. }??
25. CV_INLINE?CvRect?RectToCvRect(?RECT?sr?);??
26. CV_INLINE?CvRect?RectToCvRect(?RECT?sr?)??
27. {??
28. ???sr?=?NormalizeRect(?sr?);??
29. ???return?cvRect(?sr.left,?sr.top,?sr.right?-?sr.left,?sr.bottom?-?sr.top?);??
30. }??
31. CV_INLINE?RECT?CvRectToRect(?CvRect?sr?);??
32. CV_INLINE?RECT?CvRectToRect(?CvRect?sr?)??
33. {??
34. ???RECT?dr;??
35. ???dr.left?=?sr.x;??
36. ???dr.top?=?sr.y;??
37. ???dr.right?=?sr.x?+?sr.width;??
38. ???dr.bottom?=?sr.y?+?sr.height;??
39. ??
40. ???return?dr;??
41. }??
42. CV_INLINE?IplROI?RectToROI(?RECT?r?);??
43. CV_INLINE?IplROI?RectToROI(?RECT?r?)??
44. {??
45. ???IplROI?roi;??
46. ???r?=?NormalizeRect(?r?);??
47. ???roi.xOffset?=?r.left;??
48. ???roi.yOffset?=?r.top;??
49. ???roi.width?=?r.right?-?r.left;??
50. ???roi.height?=?r.bottom?-?r.top;??
51. ???roi.coi?=?0;??
52. ??
53. ???return?roi;??
54. }??
55. void??FillBitmapInfo(?BITMAPINFO*?bmi,?int?width,?int?height,?int?bpp,?int?origin?)??
56. {??
57. ???assert(?bmi?&&?width?>=?0?&&?height?>=?0?&&?(bpp?==?8?||?bpp?==?24?||?bpp?==?32));??
58. ??
59. ???BITMAPINFOHEADER*?bmih?=?&(bmi->bmiHeader);??
60. ??
61. ???memset(?bmih,?0,?sizeof(*bmih));??
62. ???bmih->biSize?=?sizeof(BITMAPINFOHEADER);??
63. ???bmih->biWidth?=?width;??
64. ???bmih->biHeight?=?origin???abs(height)?:?-abs(height);??
65. ???bmih->biPlanes?=?1;??
66. ???bmih->biBitCount?=?(unsigned?short)bpp;??
67. ???bmih->biCompression?=?BI_RGB;??
68. ???if(?bpp?==?8?)??
69. ???{??
70. ??????RGBQUAD*?palette?=?bmi->bmiColors;??
71. ??????int?i;??
72. ??????for(?i?=?0;?i?<?256;?i++?)??
73. ??????{??
74. ?????????palette[i].rgbBlue?=?palette[i].rgbGreen?=?palette[i].rgbRed?=?(BYTE)i;??
75. ?????????palette[i].rgbReserved?=?0;??
76. ??????}??
77. ???}??
78. }??
79. CvvImage::CvvImage()??
80. {??
81. ???m_img?=?0;??
82. }??
83. void?CvvImage::Destroy()??
84. {??
85. ???cvReleaseImage(?&m_img?);??
86. }??
87. CvvImage::~CvvImage()??
88. {??
89. ???Destroy();??
90. }??
91. bool??CvvImage::Create(?int?w,?int?h,?int?bpp,?int?origin?)??
92. {??
93. ???const?unsigned?max_img_size?=?10000;??
94. ??
95. ???if(?(bpp?!=?8?&&?bpp?!=?24?&&?bpp?!=?32)?||??
96. ??????(unsigned)w?>=??max_img_size?||?(unsigned)h?>=?max_img_size?||??
97. ??????(origin?!=?IPL_ORIGIN_TL?&&?origin?!=?IPL_ORIGIN_BL))??
98. ???{??
99. ??????assert(0);?//?most?probably,?it?is?a?programming?error??
100. ??????return?false;??
101. ???}??
102. ???if(?!m_img?||?Bpp()?!=?bpp?||?m_img->width?!=?w?||?m_img->height?!=?h?)??
103. ???{??
104. ??????if(?m_img?&&?m_img->nSize?==?sizeof(IplImage))??
105. ?????????Destroy();??
106. ??????/*?prepare?IPL?header?*/??
107. ??????m_img?=?cvCreateImage(?cvSize(?w,?h?),?IPL_DEPTH_8U,?bpp/8?);??
108. ???}??
109. ???if(?m_img?)??
110. ??????m_img->origin?=?origin?==?0???IPL_ORIGIN_TL?:?IPL_ORIGIN_BL;??
111. ???return?m_img?!=?0;??
112. }??
113. void??CvvImage::CopyOf(?CvvImage&?image,?int?desired_color?)??
114. {??
115. ???IplImage*?img?=?image.GetImage();??
116. ???if(?img?)??
117. ???{??
118. ??????CopyOf(?img,?desired_color?);??
119. ???}??
120. }??
121. #define?HG_IS_IMAGE(img)??????????????????????????????????????????????????\??
122. ???((img)?!=?0?&&?((const?IplImage*)(img))->nSize?==?sizeof(IplImage)?&&?\??
123. ???((IplImage*)img)->imageData?!=?0)??
124. void??CvvImage::CopyOf(?IplImage*?img,?int?desired_color?)??
125. {??
126. ???if(?HG_IS_IMAGE(img)?)??
127. ???{??
128. ??????int?color?=?desired_color;??
129. ??????CvSize?size?=?cvGetSize(?img?);???
130. ??????if(?color?<?0?)??
131. ?????????color?=?img->nChannels?>?1;??
132. ??????if(?Create(?size.width,?size.height,??
133. ?????????(!color???1?:?img->nChannels?>?1???img->nChannels?:?3)*8,??
134. ?????????img->origin?))??
135. ??????{??
136. ?????????cvConvertImage(?img,?m_img,?0?);??
137. ??????}??
138. ???}??
139. }??
140. bool??CvvImage::Load(?const?char*?filename,?int?desired_color?)??
141. {??
142. ???IplImage*?img?=?cvLoadImage(?filename,?desired_color?);??
143. ???if(?!img?)??
144. ??????return?false;??
145. ??
146. ???CopyOf(?img,?desired_color?);??
147. ???cvReleaseImage(?&img?);??
148. ??
149. ???return?true;??
150. }??
151. bool??CvvImage::LoadRect(?const?char*?filename,??
152. ???????????????????int?desired_color,?CvRect?r?)??
153. {??
154. ???if(?r.width?<?0?||?r.height?<?0?)?return?false;??
155. ??
156. ???IplImage*?img?=?cvLoadImage(?filename,?desired_color?);??
157. ???if(?!img?)??
158. ??????return?false;??
159. ???if(?r.width?==?0?||?r.height?==?0?)??
160. ???{??
161. ??????r.width?=?img->width;??
162. ??????r.height?=?img->height;??
163. ??????r.x?=?r.y?=?0;??
164. ???}??
165. ???if(?r.x?>?img->width?||?r.y?>?img->height?||??
166. ??????r.x?+?r.width?<?0?||?r.y?+?r.height?<?0?)??
167. ???{??
168. ??????cvReleaseImage(?&img?);??
169. ??????return?false;??
170. ???}??
171. ???/*?truncate?r?to?source?image?*/??
172. ???if(?r.x?<?0?)??
173. ???{??
174. ??????r.width?+=?r.x;??
175. ??????r.x?=?0;??
176. ???}??
177. ???if(?r.y?<?0?)??
178. ???{??
179. ??????r.height?+=?r.y;??
180. ??????r.y?=?0;??
181. ???}??
182. ???if(?r.x?+?r.width?>?img->width?)??
183. ??????r.width?=?img->width?-?r.x;??
184. ??
185. ???if(?r.y?+?r.height?>?img->height?)??
186. ??????r.height?=?img->height?-?r.y;??
187. ???cvSetImageROI(?img,?r?);??
188. ???CopyOf(?img,?desired_color?);??
189. ???cvReleaseImage(?&img?);??
190. ???return?true;??
191. }??
192. bool??CvvImage::Save(?const?char*?filename?)??
193. {??
194. ???if(?!m_img?)??
195. ??????return?false;??
196. ???cvSaveImage(?filename,?m_img?);??
197. ???return?true;??
198. }??
199. void??CvvImage::Show(?const?char*?window?)??
200. {??
201. ???if(?m_img?)??
202. ??????cvShowImage(?window,?m_img?);??
203. }??
204. void??CvvImage::Show(?HDC?dc,?int?x,?int?y,?int?w,?int?h,?int?from_x,?int?from_y?)??
205. {??
206. ???if(?m_img?&&?m_img->depth?==?IPL_DEPTH_8U?)??
207. ???{??
208. ??????uchar?buffer[sizeof(BITMAPINFOHEADER)?+?1024];??
209. ??????BITMAPINFO*?bmi?=?(BITMAPINFO*)buffer;??
210. ??????int?bmp_w?=?m_img->width,?bmp_h?=?m_img->height;??
211. ??????FillBitmapInfo(?bmi,?bmp_w,?bmp_h,?Bpp(),?m_img->origin?);??
212. ??????from_x?=?MIN(?MAX(?from_x,?0?),?bmp_w?-?1?);??
213. ??????from_y?=?MIN(?MAX(?from_y,?0?),?bmp_h?-?1?);??
214. ??????int?sw?=?MAX(?MIN(?bmp_w?-?from_x,?w?),?0?);??
215. ??????int?sh?=?MAX(?MIN(?bmp_h?-?from_y,?h?),?0?);??
216. ??????SetDIBitsToDevice(??
217. ?????????dc,?x,?y,?sw,?sh,?from_x,?from_y,?from_y,?sh,??
218. ?????????m_img->imageData?+?from_y*m_img->widthStep,??
219. ?????????bmi,?DIB_RGB_COLORS?);??
220. ???}??
221. }??
222. void??CvvImage::DrawToHDC(?HDC?hDCDst,?RECT*?pDstRect?)???
223. {??
224. ???if(?pDstRect?&&?m_img?&&?m_img->depth?==?IPL_DEPTH_8U?&&?m_img->imageData?)??
225. ???{??
226. ??????uchar?buffer[sizeof(BITMAPINFOHEADER)?+?1024];??
227. ??????BITMAPINFO*?bmi?=?(BITMAPINFO*)buffer;??
228. ??????int?bmp_w?=?m_img->width,?bmp_h?=?m_img->height;??
229. ??????CvRect?roi?=?cvGetImageROI(?m_img?);??
230. ??????CvRect?dst?=?RectToCvRect(?*pDstRect?);??
231. ??????if(?roi.width?==?dst.width?&&?roi.height?==?dst.height?)??
232. ??????{??
233. ?????????Show(?hDCDst,?dst.x,?dst.y,?dst.width,?dst.height,?roi.x,?roi.y?);??
234. ?????????return;??
235. ??????}??
236. ??????if(?roi.width?>?dst.width?)??
237. ??????{??
238. ?????????SetStretchBltMode(??
239. ????????????hDCDst,???????????//?handle?to?device?context??
240. ????????????HALFTONE?);??
241. ??????}??
242. ??????else??
243. ??????{??
244. ?????????SetStretchBltMode(??
245. ????????????hDCDst,???????????//?handle?to?device?context??
246. ????????????COLORONCOLOR?);??
247. ??????}??
248. ??????FillBitmapInfo(?bmi,?bmp_w,?bmp_h,?Bpp(),?m_img->origin?);??
249. ??????::StretchDIBits(??
250. ?????????hDCDst,??
251. ?????????dst.x,?dst.y,?dst.width,?dst.height,??
252. ?????????roi.x,?roi.y,?roi.width,?roi.height,??
253. ?????????m_img->imageData,?bmi,?DIB_RGB_COLORS,?SRCCOPY?);??
254. ???}??
255. }??
256. void??CvvImage::Fill(?int?color?)??
257. {??
258. ???cvSet(?m_img,?cvScalar(color&255,(color>>8)&255,(color>>16)&255,(color>>24)&255)?);??
259. }?
     

總結(jié)

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