Image processing of Synoptic Charts
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I need advice on the processing and data extraction from the image of a synoptic chart.
The code needs to determine the location of the high pressure (H) and low pressure (L) regions on the chart.
I have used the ocr commands, but it is not picking up the H and L text in the image.
I used a code similar to the one provided here: https://uk.mathworks.com/matlabcentral/answers/183922-unable-to-recognize-letter-labels-in-a-image-using-ocr-function. This picks up the numbers as letters as well.
0 commentaires
Réponses (1)
Anshika Chaurasia
le 15 Sep 2021
Hi Madeleine,
It is my understanding on using this answer code the ocr is recognizing numbers(0-9) as letters(A-Z).
One possible reason could be that in ocr, 'CharacterSet' is set to 'A:Z'. In this case, the ocr attempts to match each character to only letters.
results = ocr(BW1, roi, 'TextLayout', 'Word','CharacterSet','A':'Z');
Try to use ocr without CharacterSet Name-Value pair argument and check the result.
Hope it helps!
0 commentaires
Voir également
Catégories
En savoir plus sur Introduction to Installation and Licensing dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!