我怎么能一个24位彩色 System.Drawing.Bitmap 转换为一个索引(256色)格式?我有麻烦工作如何计算调色板。我可以遍历像素,并使用 INT [] 包含各种颜色,但是当有超过256种颜色的问题就来了。有没有一种方法来转换为索引的格式,并从提取256色调色板的位图?
How can I convert a 24-bit colour System.Drawing.Bitmap to an indexed (256-colour) format? I'm having trouble working out how to calculate the palette. I can iterate over the pixels and use an int[] to contain the various colours but the problem comes when there are more than 256 colours. Is there a way to convert to an indexed format and extract a 256-colour palette from an Bitmap ?
推荐答案我有同样的挑战更早。这是可能的。NET中使用GDI +来解决。
I had the same challenge earlier. It's possible to solve using GDI+ in .Net.
这篇文章对我帮助很大(均含标本): msdn.microsoft .COM / EN-US /库/ Aa479306
This article helped me a lot (including samples): msdn.microsoft/en-us/library/Aa479306
有关质量最好使用八叉树为基础的量化。
For best quality use "Octree-based Quantization".
更多推荐
C#转换为位图索引颜色格式
发布评论