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参考链接在这里...
请从上面的链接中找到图片。我需要从上面的指定图像中提取所有黑色锐利物体到NSDictionary. 目标是从分割的图像中找到单独对象的大小。我在对象像素中将图像 alpha 设置为 1,其他是透明的,比如 alpha 0。谁能帮我实现它?提前致谢... :)
NSDictionary
尝试核心图像过滤器 [1],或 NSHipster 上的这篇精彩文章:[2]
[1] https://developer.apple.com/library/mac/#documentation/graphicsimaging/reference/CoreImageFilterReference/Reference/reference.html
[2] http://www.nshipster.com/gpuimage/