Meeting 27.03.2024

[derrickmuheki]

• Documentation
• Workflow illustration
• Template matching @khufkens @derrickmuheki
• Jungle Weather info routine porting
• Fred's Imagemagick: Textdeskew, innercrop, @derrickmuheki
• Unit tests - Git hub actions
• Translate to python packages

[khufkens]

Added dockerfile routine in #2

[khufkens]

ImageMagick doesn't seem to perform well.

Initial start of a python based approach is started here (stackexchange demo - needs testing):
https://github.com/bluegreen-labs/Data_Rescue_Congo_DRC/blob/main/src/crop_border.py

[khufkens]

@derrickmuheki Illustration of the workflow is made using http://draw.io, both the original xml and a png are included as of #3

[khufkens]

ported over the JR info on the template routine as of #4

[derrickmuheki]

@khufkens been trying out template matching further today (see added module and guides txt file from GIMP). While it led to nice results for some images, in others it was way off (see attached examples) especially where there table isn't detected as the largest contour perhaps due to the paper quality or edges detected as largest contour. I will try to figure this out tomorrow. Also I was thinking whether there might be a way to relate the bounding boxes gotten as a result of template guides (hor and vert) as shown in the new template_matching module, with the bounding boxes gotten from contours (earlier done in the table_detection_model.py). Any advice will be greatly appreciated.
bounding_boxes_trial_1.pdf
bounding_boxes_trial_2_with_error.pdf

[khufkens]

@derrickmuheki could you provide a link to the code (I think you haven't pushed things yet).

If I look at the error image I see a lot of noise, maybe tweaking some of the binarization parameters might help. My setup assumes even lighting.

The CLAHE filter might mess things up, as it amplifies contrast of blobs and spots unduly.
https://github.com/bluegreen-labs/jungleweather/blob/80a6ffaf2cc57d71123097692f8366c0b8f22515/src/match_template.py#L188

[derrickmuheki]

I have now pushed the changes. My bad, thought i had done so yesterday. Going to try out this CLAHE Filter too