Jpeg2BW
Applying a curve to the mask
Since Jpeg2BW uses an extension language (which is the Scheme language), the user can apply whatever curve he or she wants to the chosen mask in order to transform it before merging the two layers. Some interesting curves are built in the program and can be called with sortcuts. Here are the most important:
 |  | This is the identity transformation, which provides the default curve when using Jpeg2BW. |
 |  | This curve may be selected from the command line with the --cubic0 option. |
 |  | This curve may be selected from the command line with the --cubic1 option. |
 |  | This curve may be selected from the command line with the --cubic2 option. |
 |  | This curve may be selected from the command line with the --cubic3 option. |
 |  | This curve may be selected from the command line with the --sin option. |
 |  | This curve may be selected from the command line with the --sqrt option. |
 |  | This curve may be selected from the command line with the --square option. |
 |  | This curve may be selected from the command line with the --circle0 option. |
 |  | This curve may be selected from the command line with the --circle1 option. |
 |  | This curve may be selected from the command line with the --quarters0 option. |
 |  | This curve may be selected from the command line with the --quarters1 option. |
 |  | This curve may be selected from the command line with the --round option. |