Improving Image Characteristics - Kodak DirectView CR 500 System User Manual

Improving Image Characteristics

Image Problem
Image is too light
Image is too dark
Image is too flat
Image contrast is too high
Image is too noisy (no edge
enhancement chosen or applied)
Image is too grainy (with edge
enhancement applied)
August 1, 2003
Use the following table to look up a general quality problem and find possible
solutions.
Two tools are available for you to improve an image-quality problem:
• Change contrast and brightness
• Change user parameters (a Key Operator function).
NOTE: If you cannot correct the problem, in the United States and Canada,
contact Kodak Customer Service Center (CSC) for service at
1-800-328-2910, prompt 2, then prompt 3 for further assistance. For
other locations, contact your Kodak service center or representative.
Recommendations
• Decrease the brightness, and then adjust the contrast if needed.
Contrast and Brightness" on page
of interest, switch to the raw image and adjust brightness and contrast on
the raw image.
• If the images are consistently too light, contact your Key Operator.
• Increase the brightness, and then adjust the contrast if needed. See
"Adjusting Contrast and Brightness" on page
the region of interest, switch to the raw image and adjust brightness and
contrast on the raw image.
• If the images are consistently too dark, contact your Key Operator.
• Increase the contrast, and adjust the brightness. See
and Brightness" on page
• If images are consistently too flat, contact your Key Operator.
• Decrease the contrast and brightness. See
Brightness" on page 6-2.
• If image contrast is consistently too high, contact your Key Operator.
• The image may require more exposure to reduce the amount of noise.
Check the exposure index in the exam information.
• The image may require more exposure to reduce the amount of noise.
Check the exposure index in the exam information.
• Cancel the edge enhancement selection.
• Change the tonescale to Raw Data tonescale type. See
Tonescale" on page 6-3
Contrast and Brightness" on page
changing it to None.
• Turn off EVP.
• If the enhanced images are consistently too grainy, contact your Key
Operator.
1F1976
Maintaining Image Quality
6-2. If this causes clipping in the region
6-2. If this causes clipping in
6-2.
"Adjusting Contrast and
and adjust contrast and brightness. See
6-2. Remove edge enhancement by
"Adjusting
"Adjusting Contrast
"Changing Image
"Adjusting
6-9