quickedit.py

# resize
from skimage.io import imread, imsave
from skimage.transform import resize
x = imread("X.png")
x2 = resize(x, (128, 128))
imsave("resize.png", x2)

# overlay
from skimage.io import imread, imsave
from skimage.transform import resize
X, Y = 1024, 1024
SIZE = (Y, X)
x1, x2 = imread("x1.png"), imread("x2.png")
x1, x2 = resize(x1, SIZE), resize(x2, SIZE)
x = (x1 + x2) / 2.0
imsave("halfhalf.png", x)

# compare 2 images
import numpy as np
from skimage.io import imread, imsave
from skimage.transform import resize
x1 = imread("x1.png")
x2 = imread("x2.png")
conc = np.concatenate([x1, x2], axis=1)
imsave("concat.png", conc)

# edge filter
import cv2
from skimage.io import imread, imsave
x = imread("x.jpg")
x2 = cv2.GaussianBlur(x, (9,9),0)
edges = cv2.Canny(x2,100,200)
imsave("save.png", edges)

# CornerHarris
from matplotlib import pyplot as plt
from skimage.io import imread, imsave
from skimage.feature import corner_harris, corner_subpix, corner_peaks
x = imread("x1.jpg", as_grey=True)
coords = corner_peaks(corner_harris(x), min_distance=5)
coords_subpix = corner_subpix(x, coords, window_size=13)
fig, ax = plt.subplots()
ax.imshow(x, interpolation='nearest', cmap=plt.cm.gray)
ax.plot(coords[:, 1], coords[:, 0], '.b', markersize=3)
ax.plot(coords_subpix[:, 1], coords_subpix[:, 0], '+r', markersize=15)
plt.show()
plt.close()


# 製本
import numpy as np
from tqdm import tqdm
from skimage.io import imread, imsave
from skimage.transform import resize

for i in tqdm([26]):
	file1 = i
	file2 = i+1
	outname = f"m{file1}-{file2}"
	
	x1 = imread(f"{file1}.png").astype(np.float32)/255.0
	x2 = imread(f"{file2}.png").astype(np.float32)/255.0
	
	if(len(x1.shape) == 3):
		x1 = np.mean(x1[:,:,0:3], axis=2)
	if(len(x2.shape) == 3):
		x2 = np.mean(x2[:,:,0:3], axis=2)
	
	conc = np.concatenate([x2, x1], axis=1)
	imsave(f"./merged/{outname}.png", conc)
	
# フォルダをまとめてリサイズ
import glob
from skimage import io
from skimage.transform import resize

filelist = glob.glob("./dir_name/*.*")

for i, filename in enumerate(filelist):
    print(filename)
    img = io.imread(filename)
    img = resize(img, (400, 400))
    img = io.imsave(f"./resized/{i:02d}.png", img)