A blurry photo can be the result of the lens not being focused correctly, the subject of the photo moving when the shutter is open, the camera moving when the shutter is open or a shallow depth of field. When blurry photos are uploaded to a computer, they will result in blurry JPEG (Joint Photographic Experts Group) image files. Blurry JPEG files can be cleared up using the "Sharpen" tool, which can be found in many image editing programs.
Pixer
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Step 1
Click the "Pixer" link located in the Resources section below.
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Step 2
Click the "Choose File" button and select a JPG file from your computer by clicking on it in the "Open" window. Click the "Open" button.
Step 3
Click the "Blur & Sharpen" button. Click and drag the "Sharpen" slider to the right. Check the preview pane and adjust the sharpening effect as needed.
Step 4
Click the "Apply" button to apply the sharpening effect to the JPEG image.
Step 5
Click the "Save" button. Click the "JPEG" button. Choose a save directory on your computer, type in a name for the file, and then click the "Save" button.
Pixlr
Step 1
Click the "Pixlr" link located in the Resources section below.
Step 2
Click the "Open image from computer" button. Select a JPEG image file from your computer and click the "Open" button.
Step 3
Click the "Filter" menu at the top of the page and click "Sharpen". To sharpen only a portion of the image, click the "Sharpen" tool (the icon that looks like an upside-down blue triangle) in the toolbar. Click and drag the mouse cursor on the image to sharpen.
Step 4
Click the "File" menu and choose "Save." Type in a name for the file and choose the "JPEG" file format. Drag the quality slider to "100," all the way to the right, and click the "OK" button. Select a save directory on your computer and click the "Save" button.
Fastone Image Viewer
Step 1
Download the "Fastone Image Viewer" by clicking on the link located in the Resources section below. Double-click the downloaded file to launch the installation program.
Step 2
Read the license agreement and click the "I Agree" button. Install the program with the default settings and click the "Finish" button when the installation is complete. The program will launch automatically.
Step 3
Locate the JPEG file using the file browser on the left side of the program window. Click on it in the pane on the right side of the program window to select it.
Step 4
Click the "Edit" menu at the top of the program window and select "Sharpen / Blur." Drag the "Sharpness" slider to the right. The preview image will reflect the level of the sharpening effect. Click the "OK" button to apply the changes.
Step 5
Click the "File" menu at the top of the program window and choose "Save." Select a save directory, type in a name for the image file, and click the "Save" button.