PeaceAndHiLight

#coding: utf-8

import cv2
import numpy as np

# readImage
img = cv2.imread('beatles_forsale.jpg')

print type(img)
pixelValue = img[10, 20]

PeaceAndHiLight

PeaceAndHiLight

#coding: utf-8

import cv2
import numpy as np

rows = 256
cols = 256

img = np.zeros((rows,cols,3), dtype=np.uint8)

PeaceAndHiLight

#coding: utf-8

import cv2
import numpy as np

# Read Image
img = cv2.imread('beatles_forsale.jpg')

# Copy John's Face
john = img[20:80, 40:100]

PeaceAndHiLight

#coding: utf-8

import cv2

img = cv2.imread('beatles_forsale.jpg', cv2.IMREAD_COLOR)

xAxis = cv2.flip(img, 0)
yAxis = cv2.flip(img, 1)
xyAxis = cv2.flip(img, -1)

PeaceAndHiLight

#coding: utf-8

import cv2
import numpy as np

img = cv2.imread('sgt_512.jpg', cv2.IMREAD_COLOR)

orgHeight, orgWidth = img.shape[:2]
size = (orgHeight/2, orgWidth/2)

PeaceAndHiLight

#coding: utf-8

import cv2
import numpy as np

img = cv2.imread('input.jpg', cv2.IMREAD_COLOR)

orgHeight, orgWidth = img.shape[:2]
size = (orgHeight/2, orgWidth/2)

PeaceAndHiLight

#coding: utf-8
import cv2
import numpy as np

#サイズの同じ画像を２枚読み込んでおく
imgA = cv2.imread('A.jpg', 1)
imgB = cv2.imread('B.jpg', 1)

#画像の大きさと次元が同じあることを確認しておく
print imgA.shape

PeaceAndHiLight

#coding: utf-8

import cv2
import numpy as np

img = cv2.imread('B.jpg', cv2.IMREAD_COLOR)
logo = cv2.imread('logo2.png', cv2.IMREAD_UNCHANGED)

#Get Height And Width of Logo
logoHeight, logoWidth  = logo.shape[:2]

PeaceAndHiLight

import cv2
import numpy as np

gamma = 1.8

lookUpTable = np.zeros((256, 1), dtype = 'uint8')

for i in range(256):
	lookUpTable[i][0] = 255 * pow(float(i) / 255, 1.0 / gamma)