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Jeff uses a Philips VCM 7310 color WebCam camera
to captures raw images as seen at left. The IR filter has been removed
from the camera detector to increase detector sensitivity, however the
images now records too red. Too correct the excessive red in the
images and to improve image contrast and sharpness, Jeff uses image processing
software to separate the red, green and blue components of the image, correcting
the red light image for excessive red. |
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Typically he separates the RGB components of
3 raw images, processes them for brightness/contrast, uses an unsharp mask,
then combines the 3 red images, the 3 green images and the 3 blue
images by stacking resulting in the B&W red light, green light and
blue light images seen at left. |
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These images are then converted to the appropriate
complimentary colors -- cyan, magenta & yellow, respectively, and combined
to produce the full color image a left. The image is now fully corrected
for the excessive red and by stacking several images for each color component,
contrast has been improved while image noise has been suppressed. |
