小白猪的猪窝

摘要： 1.通过下面方式可以获取图片的像素颜色点：- (void*)getImageData:(UIImage*)image{void* imageData;if (imageData == NULL)imageData = malloc(4 * image.size.width * image.size.height);CGColorSpaceRef cref = CGColorSpaceCreateDeviceRGB();CGContextRef gc = CGBitmapContextCreate(imageData,image.size.width,image.size.height,8,im 阅读全文