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4 posts
images
Everything filed under images.
Does Cropping Shrink a Photo?
A 16px trim grew 7 of 7 JPEGs at q95 (median 1.5036x). Cropping is a re-encode; the scissors do not set the bytes.
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If I resize a photo to 50%, is the file half the size?
50% of each side is 25% of the pixels. 17 photos landed at a median 25.4% of original bytes, not 50%.
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I compressed 20 real files at JPEG quality 80. Here's what actually shrank.
20 real files, JPEG quality 80, bytes measured from disk. Median save 15.5%. One small web JPEG got bigger. PNG screenshots were the outliers.
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How to extract text from an iPhone screenshot (without retyping it)
Your iPhone screenshot has text in it. Here's how to get it out as copyable text in a second, including the privacy trade-off every free OCR tool makes.
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