Sharpening - Smartek Vision Giganetix GC Series User Manual

7 Image Processing in GigEVisionSDK

7.2.9 Sharpening

In some situations captured images are blurred, where the reasons may vary; imperfect produced lenses
or digital image sensors themselves can blur an image to some degree as well as motion in the scene and
image operations which may reduce the sharpness. Especially on Bayer color image sensors, where the
missing color information is interpolated, a loss of sharpness is unavoidable.
Sharpening emphasizes edges and fine details in the image, enhancing its visual quality. The image seems
sharper, but no new details are actually created.
Figure 157 demonstrates the sharpening algorithm of the ImageProcAPI. On the left the original image is
displayed, on the right the sharpened image with an applied sharpen factor of 1.0. As result the output
image appears sharper in comparison to the original one.
Original Image Sharpen Factor 1.0
Original Image (Zoomed) Sharpen Factor 1.0 (Zoomed)
Figure 157: Example of sharpening algorithm (factor 1.0)
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SMARTEK Vision Giganetix User Manual Version 2.1.4