Robert Knight

icon indicating a website link https://robertknight.me.uk icon indicating an email [email protected]

icon company @hypothesis icon location London, United Kingdom icon location Lead developer at @hypothesis. Preact contributor. Previous projects - @Mendeley's desktop app, Konsole terminal for KDE.

Results 727 comments of Robert Knight

Compile error - no matching function for call to `safe_bind(std::tr1::weak_ptr)`

I'm afraid I don't have access to a similar environment for testing purposes. I believe C++11 should be supported with that compiler version, so I suggest debugging the issue using...

OCR fails if image is rotated

No. Ensuring the input is correctly oriented is currently a problem that users of the library have to solve.

How to pass --psm to detect text as a single column of text?

Yes, I'd be willing to accept that.

How to pass --psm to detect text as a single column of text?

I can see a few options: 1. Make the segmentation mode (or an options struct containing the mode) a required argument, and modify the JS code to always provide it....

Large images can cause WASM out-of-memory errors

A 32-bit image of that size requires ~162MB of space and this library is currently configured to allow a maximum memory size of 128MB. Some workarounds are to use a...

Large images can cause WASM out-of-memory errors

I should note that internally Tesseract resizes detected lines of text to a fixed height before performing recognition on them, so once the input image is high-enough resolution that the...

Large images can cause WASM out-of-memory errors

Are you able to provide an example of one of the larger images that causes this error, as well as one that works but returns an empty string from `getText`?...

Large images can cause WASM out-of-memory errors

> my only feedback would be that it would be good if an error could be thrown instead of only logging to stderr. I agree. Unfortunately the underlying Tesseract library...

Large images can cause WASM out-of-memory errors

No, only the two changes mentioned in the changelog.

Demo app: Images rotated if added from iOS / macOS photo library

Thanks. Those answers suggest it might be possible to read EXIF info with a smaller amount of code than the full EXIF JS. It would be even better if the...