Binary Image Png Vs Jpg. The reason is because the compression is lossy which means that certain unnecessary information is permanently deleted. Png an acronym for portable network graphics png is a lossless file format designed as a more open alternative to graphics interchange format gif.
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In this post i will share how to convert numpy image or pil image object to binary data without saving the underlying image to disk. Jpgs are always lossy even at 100 quality. Vista and win7 will recompress the image if it s png or if it has an extension other than jpg as i mentioned saving the wallpapers as bitmap and naming them jpg will avoid this.
The reason is because the compression is lossy which means that certain unnecessary information is permanently deleted.
Unlike jpeg which relies on dct compression. Jpeg images are best for photographic images with smooth transitions of colours but png format is good for images with sudden changes in colour and contrast such as text and cartoons. But often what we have got is image in opencv numpy ndarray or pil image format. It clearly that the process of showing normal images from a directory on the web page is same as here we show the image from base64 binary coded text.
