Create patches from a big image both sequentially and randomly

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In this video, I tried to show how patches (small portions) can be created from a big image in two different ways: sequentially and randomly. For creating patches sequentially, I used the 'patchify' library; for the random case, I used the 'NumPy' library. We don't get any overlapping when we extract patches sequentially but overlaps are expected in case of random extraction.
GitHub address: github.com/ran...
#datascience #python #jupyternotebook #numpy #matplotlib #patchify #patchcreation

Опубликовано:

17 окт 2024

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Комментарии : 12

@anneryan4051 11 месяцев назад

Thank you! This is the best patchify example I've found.

@patrickcraig4608 2 месяца назад

Do you know of any way to do this for coco annotated data?

@MediocreGuy2023 2 месяца назад

@@patrickcraig4608 I have never worked with COCO dataset but, I found out from the Internet that this dataset is used for object detection and image segmentation tasks. Image segmentation is different from cropping small patches from a large image.

@_kkaai Год назад

Thank you

@barshneyatalukdar1492 5 месяцев назад

How to save the images in another folder after getting the patches

@MediocreGuy2023 5 месяцев назад

plt.savefig(f'output_dir/{i+1}.jpg', dpi=300, bbox_inches='tight', pad_inches=0); Put this line within for loop. Here, output_dir should be the folder where your images will be saved based on i (number of images).

@barshneyatalukdar1492 5 месяцев назад

@@MediocreGuy2023 I need one by one patch that is being generated already am able to save the whole collected patches image as one image but i want it separately not joined. I have inserted the line after ax1[R1, C1].axis('off')

@barshneyatalukdar1492 5 месяцев назад

I need to save each image one by one separately if you can show

@MediocreGuy2023 5 месяцев назад

@@barshneyatalukdar1492 Not like that. You need extra lines of code using a for loop.

@MediocreGuy2023 5 месяцев назад

@@barshneyatalukdar1492 github.com/randomaccess2023/MG2023/issues/1