BMP图像文件的操作，编写C++程序，可以将一个标准24bit真彩色BMP文件中三基色图像提取出来存成独立的8bit灰度图像（BMP）-The operation of the BMP image file, write C++ program trichromatic image in a standard 24bit true color BMP files can be extracted to be saved as a separate 8bit grayscale images (B

24-bitmap的读取和获取色彩通道。显示灰度图。-24-bitmap read and get the color channels. Display grayscale.

在android平台上实现用java和NDK两种方式实现将彩色图片转化为灰度图片-Android platform java and NDK are two ways to achieve the color image into grayscale images

Java将彩色图像转换为灰度图，本程序利用缓冲区图像实例了图像的灰化处理，效果如上图所示，当单击“Gray Image”按钮后，显示了灰化处理后的图像；当再单击“Reset”按钮后，显示源图像。具体来说是利用java.awt.image 包中的ColorConvertOp 类来实现灰化图像的效果。-Java will convert color images to grayscale, the program uses an instance of the image buffer ashing