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ImageHandler.py
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ImageHandler.py
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import os
import matplotlib.pyplot as plt
import matplotlib.image as mpimg
import re
import shutil
import cv2
import numpy as np
class ImageHandler:
def __init__(self, path_to_images):
self.imageFolder = path_to_images
valid, valid_images, faulty_names = self.verify_image_names(path_to_images)
self.imagePaths = valid_images
if not valid:
print("Unvalid image names in the given folder:", path_to_images)
print("Correct them before using more functions")
for faulty_name in faulty_names:
print(faulty_name)
def verify_image_names(self, folderPath):
faulty_names = []
image_file_names = []
valid = True
expected_filename = r"image\d+.jpg"
for filename in os.listdir(self.imageFolder):
if not re.search(expected_filename, filename):
faulty_names.append(filename)
valid = False
else:
image_file_names.append(os.path.join(folderPath, filename))
return valid, image_file_names, faulty_names
def display_image(self, image):
plt.imshow(image)
plt.show()
def get_image_from_name(self, filename):
filename = os.path.join(self.imageFolder, filename)
if filename in self.imagePaths:
img = mpimg.imread(filename)
return img
else:
print("Image doesn't exist!")
def writeToDisk(self, images, folderName):
if os.path.exists(folderName) and os.path.isdir(folderName):
shutil.rmtree(folderName)
os.mkdir(folderName)
for i, img in enumerate(images):
cv2.imwrite(os.path.join(folderName, str(i + 1) + ".jpg"), np.int32(img))