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image tools for deep learning

Project description


yyimg is a high-level image-processing tool, written in Python and using OpenCV as backbend. This repo helps you with processing images for your deep learning projects.


Commands to install from pip or download the source code from our website

$ pip3 install yyimg==1.0.0rc

Example Useage

Take one image in Kitti dataset for example:

import yyimg
from PIL import Image
image, boxes, classes = yyimg.load_data()
Items Description
image a numpy array of shape (height, width, #channels)
boxes a numpy array of shape (N, 5), representing N 2Dboxes of [class_index, xmin, ymin, xmax, ymax]
classes a list of class names
['Car', 'Truck', 'Van', 'Pedestrian']

visualize 2D boxes

draw_image = yyimg.draw_2Dbox(image, boxes, class_category=classes)
draw_image = cv2.cvtColor(draw_image, cv2.COLOR_BGR2RGB) # BGR -> RGB


data augmentation

- horizontal_flip

with 2D bounding boxes:

aug_image, boxes = yyimg.horizontal_flip(image, boxes)

without 2D bounding boxes:

aug_image = yyimg.horizontal_flip(image)


- add_rain

aug_image = yyimg.add_rain(image)


- shift_gama

aug_image = yyimg.shift_gamma(image) 


- shift_brightness

aug_image = yyimg.shift_brightness(image)


- shift_color

aug_image = yyimg.shift_color(image)


Project details

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