Image Processing Filters - How to Sharpen a Photograph

By Stephen Bucaro

Do you have a blurry image that you would like to sharpen? Most image editing applications provide an image sharpen function. If you don't already have an image editing application, you can either pay over $100 for Adobe Photoshop, or you can download the free Paint.NET image editing application for Windows.

Image sharpening works scanning through the pixels of the image and performing a mathematical matrix operation on each pixel. The formula uses the color and intensity of the pixel, along with the color and intensity of the surrounding pixels to calculate how much to increase the contrast of the target pixel.

Adjusting the amount of sharpening sets amount to adjust the contrast, and the size of the area of surrounding pixels to use in the calculation.

Be aware that too much sharpening can increase the amount of noise in the image.

More Graphics Design Tips:
• Graphics Design for Beginners - Blur Filters
• An Insight to Logos
• Graphics Design for Beginners - Cropping Images
• How to Create Radial Gradients in Inkscape
• Introduction to X3D (Extensible 3D)
• The Browser Safe Palette
• How to Create a Simple Video with Windows Movie Maker
• Image Processing Filters - How to Sharpen a Photograph
• How to Trace an Image Using Photoshop
• SVG Image Masking

RSS Feed

 Follow @Stephen Bucaro

 General Web Design
 HTML Quick Reference
 CSS Quick Reference
 Java Script Quick Reference
 HTML Design
 Graphics Design
 Easy Cascading Style Sheets
 Easy Java Script Code
 Web Design Tools
 Coding Issues