LibTiff Mailing List
TIFF and LibTiff Mailing List Archive
August 1994
Previous Thread
Next Thread
Previous by Thread
Next by Thread
Previous by Date
Next by Date
Contact
The TIFF Mailing List Homepage
This list is run by Frank Warmerdam
Archive maintained by AWare Systems
Thread
1994.08.26 18:01 "tiffdither inserts noise", by Uwe Bonnes
After tiffdither, a grayscale image with some black lines on a white background has noise random distributed all over the image. I can adjust the threshold, the lower I set the threshold, the less noise I get, but it is always there in some (unacceptable) degree. Am I doing somthing wrong? As the original data I want to process is a B/W-postscript-File I would request a function "pbm2tiff" to avoid the necessarity of going the way ps --> ppm --> ppm2tiff --> tiff2bw --> tiffdither. Uwe Bonnes bon@lte.e-technik.uni-erlangen.de