Lars wrote: ↑Wed Dec 11, 2019 12:34 pm
Yes i have used export for NConvert but it does not include the setting for Tolerance.
It looks as if 'tolerance' is not supported in NConvert which would rather limit its use?
A possible theoretical workaround, if the range of blue values is small, might be to use multiple code lines with different blue values, in a batch file...
Or maybe there is some other workaround, maybe convert to index colours first, for example, I think that might work?
Yes i do get an output and it looks ok, besides that i need to remove background colors of some words, like the color blue.
The reason is that i want to convert the image to black/white and when the background color of a word is blue, it just makes a black box over the word
I noted in your code that you used -multi which is used to create a multi-page TIFF or PDF, but you don't include a -xall which is required to extract the pages of a multi-page file before conversion. Also the -c TIFF:4 term is not correct syntax, I believe.
@Pierre: Is a tolerance value not supported in NConvert??