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Feature #127

Images in output as slices of original scan

Added by Michele Vivoda about 10 years ago. Updated about 10 years ago.

Status:
Assigned
Priority:
medium
Assignee:
-
Category:
MarkReader
Target version:
sqs-reader - MarkReader2.1
Start date:
2012-04-28
Due date:
% Done:

0%

Estimated time:

Description

I am not sure about this, but I have the impression that the images output of free text question are slices not of the original image but of some intermediate processing format. I noticed this because some barcodes in the output images cannot be read, also if in the original scan they can. Probably for written text this is not even noticeable however seems barcode cannot live with it... I have a success result of 244/659 = 37% in my tests for reading barcodes.

One result image, in which the barcode cannot be read
The correspondent original scan

History

#1

Updated by Hiroya Kubo about 10 years ago

You may get better results with sub-pixel sampling/rendering of image slices.

cf. net.sqs2.omr.app.deskew.DeskewedImageSource.SUBPIXEL_SAMPLING_FACTOR

#2

Updated by Hiroya Kubo about 10 years ago

It seems that some kinds of variable parameter setting of sub-pixel sampling factor are required...

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