Fixed abnoma Alpha of output img. Fixed a potential issues. #8
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Fixed a long-standing potential issue: when
Image_Tester.pyis not executed in advance and there are unsafe images, which lead to abnormal output.The line
avgs.append(getAverageRGB(img))in case of an exception will result in the length ofavgsbeing less than the length ofinput_images, causing index confusion and abnormal output.Fixed incorrect alpha blending.
For example, two pixels that are not totally opaque (less than 255), no matter how they are overlaid, will remain not totally opaque. Therefore, we always output as RGB (jpeg).
Optimization coding. Since the script only consider the RGB channels when matching images, we can set and blend the alpha channel at the end to enhance code readability.