Workflow Guide denoising

In this processing step, artifacts like little specks (both in foreground or background) are removed from the binarized image. (Not to be confused with raw denoising in step 0.)

This may not be necessary for all prints, and depends heavily on the selected binarization algorithm.

Available processors

Processor	Parameter	Remarks	Call
ocrd-cis-ocropy-denoise	-P noise_maxsize 3.0		ocrd-cis-ocropy-denoise -I OCR-D-BIN2 -O OCR-D-DENOISE
ocrd-skimage-denoise	-P maxsize 3.0	Slow	ocrd-skimage-denoise -I OCR-D-BIN2 -O OCR-D-DENOISE

Notes on parameter usage

E.g.

• which parameters do you use with what values?
• which parameters are insufficiently documented?
• which aspects of a processor should be parameterizable but are not?

Notes on document-specific usage

E.g. which processors worked best with what material? -- feel free to post sample images here, too.