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| author | wood <qianchenglenger@163.com> | 2015-10-01 19:23:07 +0300 |
|---|---|---|
| committer | wood <qianchenglenger@163.com> | 2015-10-01 19:23:07 +0300 |
| commit | a2159ed0f4d0a2860692f733eca1eaab3eb325da (patch) | |
| tree | 5a1ddf4308e3cac9516bcfa4e98b0cd539783739 /core/src/test/java | |
| parent | b5e9cffeba47a5bdd4fe78a661cbc4b664b067c6 (diff) | |
| download | zxing-a2159ed0f4d0a2860692f733eca1eaab3eb325da.tar.xz | |
change the comment
Change the comment
Diffstat (limited to 'core/src/test/java')
| -rw-r--r-- | core/src/test/java/com/google/zxing/BufferedImageLuminanceSource.java | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/core/src/test/java/com/google/zxing/BufferedImageLuminanceSource.java b/core/src/test/java/com/google/zxing/BufferedImageLuminanceSource.java index d46da9bf9..cdf3af682 100644 --- a/core/src/test/java/com/google/zxing/BufferedImageLuminanceSource.java +++ b/core/src/test/java/com/google/zxing/BufferedImageLuminanceSource.java @@ -68,7 +68,9 @@ public final class BufferedImageLuminanceSource extends LuminanceSource { pixel = 0xFFFFFFFF; // = white } - // .229R + 0.587G + 0.114B (YUV/YIQ for PAL and NTSC) + // .299R + 0.587G + 0.114B (YUV/YIQ for PAL and NTSC), + // (306*R) >> 10 is approximately equal to R*0.299, and so on. + // 0x200 >> 10 is 0.5, it implements rounding. buffer[x] = (306 * ((pixel >> 16) & 0xFF) + 601 * ((pixel >> 8) & 0xFF) + |