So i managed to extract the roi for the license plate image I wanted [image] However, I am unable to get the boundingbox over the individual letters. I’ve tried the find_blobs but it detects the entire image instead. Any advice on how to get around it? crop2.mean(1, threshold=True, offset=5, inv…

Any method is fine. They all add a delay. However, images should not be corrupted from saving them very fast. There should be no issue with that.

You need to dilate and or erode the image to cleanup things.

Thanks this helped ! I have another query, my current code saves the segmented images and it works well just that because the images are taken & saved very fast, when it overwrites some image .bmp files might end up corrupted. Which do i use to give it a delay? would time.sleep() or machine.sleep /…

How to segment characters/find contours from image

OpenMV Boards

H7MV June 16, 2022, 8:18am 5

Thanks ! I ended up using utime.sleep_ms() and it worked well enough. the photos didn’t get corrupted or anything.

Topic		Replies	Views
Improving segmentation from video feed OpenMV Boards	1	369	June 17, 2022
Search part if a image OpenMV Boards	2	1468	May 23, 2018
findContours OpenMV Boards	26	20624	February 24, 2019
blob count OpenMV Boards	8	2841	July 10, 2020
Pre-processing before Bolb Detection - MorphClose, Div, Norm & Thresh OpenMV Boards	3	5322	June 7, 2019

How to segment characters/find contours from image

Related topics