Latest posts
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Accessible Color Contrast Guide for Designers
Accessible Color Contrast Guide for Designers WCAG 2.1 AA requires a contrast ratio of at least 4.5 to 1 for normal body text and at least 3 to 1 for large text (18pt or 14pt bold and up) and UI components, measured between the text color and its background, so designers should check every text…
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OCR Explained: Why Does OCR Fail on Some Documents?
OCR Explained: Why Does OCR Fail on Some Documents? Why does ocr fail on some documents? In short, optical character recognition breaks down when the source image gives it too little to work with. The five biggest causes are low scan resolution, skewed or rotated pages, poor contrast between text and background, unusual fonts or…
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How Do QR Codes Work? The Reason They Rarely Fail
How Do QR Codes Work? The Reason They Rarely Fail So how do QR codes work? A QR code stores data as a grid of black and white squares that a camera reads like a tiny map, and it keeps scanning even when part of it is smudged, torn, or poorly lit because of a…