JPEG artifacts are something that occur often in low-resolution images. They are the result of an image being enlarged, resized and compressed too many times. The image becomes blocky and pixelated. However, this easily can be fixed. JPEG artifacts can be removed from an image in Photoshop using the "Reduce Noise" filter.
Launch Photoshop, click on the "File" menu, click on "Open" and open the JPEG you will be working on.
Click on the "Filter" menu. Mouse over "Noise" and click on "Reduce Noise."
Select zero for all of the parameters in the "Reduce Noise" dialog box. Then click on the check box next to "Remove JPEG Artifact." Click "OK" to apply the filter.
Tips & Warnings
- Adjust the "Strength" and "Preserve Details" sliders in the "Reduce Noise" filter dialog box to get different results.
- Photo Credit Ciaran Griffin/Lifesize/Getty Images
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