# keys: Advanced image processing
# Note: You should only modify these values if you are experienced with image processing operations.
#    @adjust_contrast       Adjusts the contrast level of the output images.
#                           The value represents how many times the contrast adjustment alogrithm should be run on an image (for example, a value of 3 would result in the contrast algorithm being run three times).
#                           A positive value will increase contrast, a negative value will decrease contrast, and a value of 0 leaves the contrast unmodified.
#                           Acceptable values: 0 (to disable), an integer between 1 and 5 inclusive (to increase contrast), or an integer between -5 and -1 inclusive (to decrease contrast)
#                           Recommended value: Personally I think contrast adjustments should be done manually on a per image basis (so I leave this disabled). If you are going to use this feature, I recommend using a small value (1 or -1).
#    @auto_level            Determines whether to use the ImageMagick -auto-level feature.
#                           Description from the ImageMagick website: "It finds the exact minimum and maximum color values in the image and then applies a -level operator to stretch the values to the full range of values."
#                           Acceptable values: true, false
#    @despeckle             Determines whether to use the ImageMagick -despeckle feature.
#                           The value represents how many times the despeckle algorithm should be run on an image (for exmaple, a value of 3 would result in the despeckle algorithm being run three times).
#                           Note that if you enabled this feature and @auto_trim, the first despeckle operation will occur before trimming.
#                           Acceptable values: 0 (to disable), an integer between 1 and 5 inclusive
#                           Recommended value: If your scans aren't too noisy just leave this disabled (0). If you are going to use this feature, a low value (1) is recommended, otherwise the image can lose a lot of detail.