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发明公开
CN101621703A 一种图像序列色彩空间转换的方法 有权 转让

一种图像序列色彩空间转换的方法
摘要：
本发明提供了一种图像序列色彩空间转换的方法，从图像序列中依次提取各个图像文件，再提取每个图像文件的各个像素执行下述步骤：确定当前所提取像素的R、G、B值；根据预先设置的RGB转换校正表分别查找所述R、G、B值各自对应的转换校正后的值R’、G’、B’；将所述R’、G’、B’值进行色彩空间转换为X、Y、Z值；根据预先设置的XYZ转换校正表分别查找所述X、Y、Z值各自对应的转换校正后的值X’、Y’、Z’；将所述X’、Y’、Z’替换所取像素的R、G、B值。使用本发明可缩短数字电影编码处理的时间。
摘要（英）：

The invention provides a method for colour space conversion of an image sequence. Image files in the image sequence is extracted, and pixels of each image file is extracted to perform the following steps: determining values R, G and B of pixels extracted currently; searching values R', G' and B' after conversation correction corresponding to the values R, G and B according to a preset RGB conversion correcting table; converting colour space of the values R', G' and B' into values X, Y and Z; searching values X', Y' and Z' after conversion correction corresponding to values X, Y and Z according to a preset XYZ conversion correcting table; and substituting the values X', Y' and Z' into values X, Y and Z. By adopting the invention, the time for encoding digital films can be shortened.

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