--save-crop

[PriyamDalwadii]

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Question

I am working on project on object detection and saving the crop image of detection. I am using --save-crop flag but it creates duplicates of same image. How to just save one crop image instead of multiple crop images?

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[github-actions]

👋 Hello @PriyamDalwadii, thank you for your interest in YOLOv5 🚀! Please visit our ⭐️ Tutorials to get started, where you can find quickstart guides for simple tasks like Custom Data Training all the way to advanced concepts like Hyperparameter Evolution.

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[glenn-jocher]

@PriyamDalwadii 👋 Hello! Thanks for asking about cropping results with YOLOv5 🚀. Cropping bounding box detections can be useful for training classification models on box contents for example. This feature was added in PR #2827. You can crop detections using either detect.py or YOLOv5 PyTorch Hub:

detect.py

Crops will be saved under runs/detect/exp/crops, with a directory for each class detected.

python detect.py --save-crop

YOLOv5 PyTorch Hub

Crops will be saved under runs/detect/exp/crops if save=True, and also returned as a dictionary with crops as numpy arrays.

import torch

# Model
model = torch.hub.load('ultralytics/yolov5', 'yolov5s')  # or yolov5m, yolov5l, yolov5x, custom

# Images
img = 'https://ultralytics.com/images/zidane.jpg'  # or file, Path, PIL, OpenCV, numpy, list

# Inference
results = model(img)

# Results
crops = results.crop(save=True)  # or .show(), .save(), .print(), .pandas(), etc.

Good luck 🍀 and let us know if you have any other questions!

[PriyamDalwadii]

@glenn-jocher Hey! I am using python detect.py --source 1 --save-crop.
It is creating multiple crop images of same detection. Any suggestion to store only 2-3 crop images of detected class? It is single detection. Thank you in advance

[glenn-jocher]

@PriyamDalwadii only one crop is produced per detection. If you have multiple crops you have multiple detections.

[PriyamDalwadii]

I have run inference using webcam. It has one detection in the frame.

following is the directory created by --save-crop.

It creates tens of images in one or two seconds!

Is there something wrong with my code or it supposed to be like this?

[glenn-jocher]

@PriyamDalwadii this is probably just one image per frame as intended.

[PriyamDalwadii]

@glenn-jocher Absolutely, I don't know if i quite got it, but I don't know why it keeps cropping same image for multiple time? I hope you get my point. Any fix to just crop one image per 1 detection

[glenn-jocher]

@PriyamDalwadii I think you're not understanding. If your webcam is running at 30FPS you'll have 30 images processed in 1 second. If the object is in each image you'll have 30 crops in 1 second. Everything is working as intended.

[PriyamDalwadii]

oh! Great Thanks! @glenn-jocher

[sourabmaity]

After collecting all images you can remove them by checking the similarity search method from images.

[PriyamDalwadii]

After collecting all images you can remove them by checking the similarity search method from images.

@sourabmaity Thanks for the idea, do have any good resource that I can refer?

[sourabmaity]

you can check fastdup @PriyamDalwadii
https://github.com/visualdatabase/fastdup

[PriyamDalwadii]

you can check fastdup @PriyamDalwadii https://github.com/visualdatabase/fastdup

Thanks! This might help :D

[github-actions]

👋 Hello, this issue has been automatically marked as stale because it has not had recent activity. Please note it will be closed if no further activity occurs.

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