OCR segmentation

[raindropsfromsky]

Is your feature request related to a problem? Please describe. NAPS2 decides the type of content automatically, and OCRs the "text" and "table" type of blocks, while reproduces the "image" type of blocks without OCR. However, there is a problem: Some images contain embedded text. Such images are also treated as text blocks. The result is suboptimal.

Describe the solution you'd like

Let NAPS2 show the default block types to the user, and allow user to edit those blocks.

• If he draws a block that covers more than one blocks, they should be merged into a new block.
• Let him also re-assign the type (image/text/table) to each block.

All professional OCR software have this feature.

Describe alternatives you've considered A clear and concise description of any alternative solutions or features you've considered.

Additional context Add any other context or screenshots about the feature request here.

[kintaro1981]

@raindropsfromsky I reported the same problem in #242 in the meanwhile have you solved with some alternatives?

[EmperorArthur]

While not the exact same issue, related to #208.