Automatically determine size of jpeg frames

chhtz commented 12 months ago

Sometimes, when reading a jpeg file you don't want to fully decompress it, but keep it as compressed imaged. frame::Frame still wants to know the size of the image, which can be determined using libjpeg.

Open points:

Shall this functionality be moved elsewhere? (e.g., FrameHelper)
Additional functionality (maybe also in FrameHelper, such as loadImageCompressed which keeps the jpeg images in compressed mode)
No specific error handling yet
No unit test yet (I tested this with the FrameHelper test_suite, but did not make a PR for that)

doudou commented 12 months ago

I think this should be moved to FrameHelper as a "readJPEG" method that returns the frame.

chhtz commented 12 months ago

I added corresponding functions to FrameHelper (added a helper function to JpegConversion): https://github.com/rock-core/perception-jpeg_conversion/pull/3 https://github.com/rock-core/perception-frame_helper/pull/18

chhtz commented 11 months ago

Closing this, as the feature has been merged into FrameHelper (see links above).

rock-core / base-types

Automatically determine size of jpeg frames #165