- Category:
- OpenCV
- Tags:
-
[C/C++]
[源码]
- File Size:
- 3kb
- Update:
- 2013-04-25
- Downloads:
- 0 Times
- Uploaded by:
- 陈宇
Description: Create a program to read and display an image
allows the user to select a rectangular area in the image, and then hold down the mouse to draw a rectangle. When the mouse is released, the highlighted rectangle in memory to retain a copy of the original image, to prevent modify the image to change the original image data. The next time you click the mouse button to restore the image and re-start the rectangle
in a separate window, using the drawing functions to draw a chart, said selected number of pixels of each color blue, green and red, respectively. This is the color histogram of the selected area. x coordinate system which means that the pixel value range the 0-31,32-63 ...... ,223-255, y coordinates corresponding to the number of pixels in the selected area. For each color channel (BGR)
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ex4_3.cpp
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