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add if block for indexed color images

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This commit is contained in:
okamotoR 2020-06-23 21:36:47 +09:00
parent 7fae2e834c
commit 0e69cddda2
1 changed files with 15 additions and 0 deletions
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15
modules/imgcodecs/src/ios_conversions.mm
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@ -112,6 +112,21 @@ void UIImageToMat(const UIImage* image,
m.step[0], colorSpace,
bitmapInfo);
}
else if (CGColorSpaceGetModel(colorSpace) == kCGColorSpaceModelIndexed)
{
// CGBitmapContextCreate() does not support indexed color spaces.
colorSpace = CGColorSpaceCreateDeviceRGB();
m.create(rows, cols, CV_8UC4); // 8 bits per component, 4 channels
if (!alphaExist)
bitmapInfo = kCGImageAlphaNoneSkipLast |
kCGBitmapByteOrderDefault;
else
m = cv::Scalar(0);
contextRef = CGBitmapContextCreate(m.data, m.cols, m.rows, 8,
m.step[0], colorSpace,
bitmapInfo);
CGColorSpaceRelease(colorSpace);
}
else
{
m.create(rows, cols, CV_8UC4); // 8 bits per component, 4 channels