User`s guide
DocuMate 765 Scanner User’s Guide 87
Scanning from ISIS
• Chroma—this option allows you to specify the amount of gray or 
white used to dilute the colors in the scanned image. Move the slider 
left or right to change the chroma level between 1 to 255. Low 
saturation colors will appear washed out and highly saturated colors 
will be pure and vivid.
JPEG Quality—JPG files have different levels of compression. When 
used with high compression, images are small enough in file size to email 
or put on a web page. Low compression images maintains better image 
quality when compared to the original, but the file sizes are higher. 
Move the slider left or right to change the JPEG quality. Low quality 
means that the compression level is high and some image quality will be 
lost. High image quality means that the compression level is low and the 
image quality is close to that of the original.
Drop Out—this option tells the scanner and software to remove a specific 
color from the image. This option is only available when scanning in 
grayscale or black and white.
• Single Color—click on the drop menu and select either Red, Blue or 
Green to remove that color 
• Multiple Colors—this option allows you to set up to 6 specific colors 
that you want to remove from the image. 
1. Click on the Dropout... box to open the Multiple Colors dropout 
window.
2. Click on Enable.










