This code can realize image edge extraction can also be color image is converted to gray image, which edge detection using sobel operator

Packet : 59564344c  builder1.rar filelist
边缘提取\Project1.bpr
边缘提取\Project1.cpp
边缘提取\Project1.exe
边缘提取\Project1.obj
边缘提取\Project1.res
边缘提取\Project1.tds
边缘提取\Project1.~bpr
边缘提取\Project1.~cpp
边缘提取\Show1.bmp
边缘提取\Unit1.cpp
边缘提取\Unit1.ddp
边缘提取\Unit1.dfm
边缘提取\Unit1.h
边缘提取\Unit1.obj
边缘提取\Unit1.~cpp
边缘提取\Unit1.~ddp
边缘提取\Unit1.~dfm
边缘提取\Unit1.~h
边缘提取\原始lena图像.bmp
去彩色背景（二值化）\Project1.bpr
去彩色背景（二值化）\Project1.cpp
去彩色背景（二值化）\Project1.exe
去彩色背景（二值化）\Project1.obj
去彩色背景（二值化）\Project1.res
去彩色背景（二值化）\Project1.tds
去彩色背景（二值化）\test9.BMP
去彩色背景（二值化）\Unit1.cpp
去彩色背景（二值化）\Unit1.ddp
去彩色背景（二值化）\Unit1.dfm
去彩色背景（二值化）\Unit1.h
去彩色背景（二值化）\Unit1.obj
去彩色背景（二值化）\Unit1.~cpp
去彩色背景（二值化）\Unit1.~ddp
去彩色背景（二值化）\Unit1.~dfm
去彩色背景（二值化）\Unit1.~h
边缘提取
去彩色背景（二值化）

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