Can You Actually Fix a Blurry Photo?

How to Sharpen an Image Online (5 Free Methods) Blurry photos happen. Soft focus, camera shake, motion blur, low light — they all produce images that look slightly off. Sharpening can recover the crispness your photo should have had, and you do not need Photoshop to do it. Here are five free methods to sharpen an image, ranging from browser-based editors to command-line precision. Each method uses the same underlying technique, so the concepts transfer across tools. If you want the opposite effect — adding blur for backgrounds, privacy, or creative purposes — see How to Blur an Image instead. How Image Sharpening Works Sharpening does not add detail that was never captured. It increases contrast along edges — the boundaries between light and dark areas — making existing detail look more defined. The most common algorithm is Unsharp Mask (USM), which works in three steps: Create a blurred copy of the image. Subtract the blur from the original to isolate edge detail. Add that edge detail