python image生成图片_python生成图片详解

import cv2.cv as cv

saveImagePath = E:/ScreenTestImages/

colorRed = [0,0,255]

colorGreen = [0,255,0]

colorBlue = [255,0,0]

colorWhite = [255,255,255]

colorBlack = [0,0,0]

colorAqua = [255,255,0]

colorFuchsia = [255,0,255]

colorYellow = [0,255,255]

stardardColors = [colorBlue,colorGreen,colorAqua,colorRed,colorFuchsia,colorYellow,colorWhite]

def createImg(depth=3):

return cv.CreateImage((800,480),8,depth)

def saveImageFile(typeName,img):

filename = saveImagePath + typeName + .png

cv.SaveImage(filename,img)

print typeName+.png, ... ok

def createOneColorImage(color):

img = createImg()

cv.Set(img,color)

return img

def create64GrayImage():

img = createImg(1)

cv.SetZero(img)

for xPos in range(0,64):

cv.SetImageROI(img,(int(12.5*xPos),0,800,480))

cv.Set(img,xPos*255/63)

cv.ResetImageROI(img)

return img

def createCheckBoardPattern(isReserved=False):

img = createImg(1)

boolColor = True

numsX = 4

numsY = 4

pixsX = 800/numsX

pixsY = 480/numsY

for x in range(0,numsX):

for y in range(0,numsY):

cv.SetImageROI(img,(x*pixsX,y*pixsY,(x+1)*pixsX,(y+1)*pixsY))

boolColor = not (x%2) ^ (y%2) ^ isReserved

cv.Set(img,255*boolColor)

cv.ResetImageROI(img)

return img

def createStardardImage():

img = createImg()

pixs = 800./7

for i in range(0,7):

cv.SetImageROI(img,(int(i*pixs),0,int(i*pixs+pixs),480))

cv.Set(img,stardardColors[i])

cv.ResetImageROI(img)

return img

if __name__ == __main__:

print Start Gen Test Screen Files ...

saveImageFile(red,createOneColorImage(colorRed))

saveImageFile(green,createOneColorImage(colorGreen))

saveImageFile(blue,createOneColorImage(colorBlue))

saveImageFile(white,createOneColorImage(colorWhite))

saveImageFile(black,createOneColorImage(colorBlack))

saveImageFile(64gray,create64GrayImage())

saveImageFile(checkboard Pattern,createCheckBoardPattern())

saveImageFile(checkboard Pattern(inverted),createCheckBoardPattern(True))

saveImageFile(standard,createStardardImage())

print Generate Success!

import cv2.cv as cv saveImagePath = E:/ScreenTestImages/ colorRed = [0,0,255] colorGreen = [0,255,0] colorBlue = [255,0,0] colorWhite = [255,255,255] colorBlack = [0,0,0] colorAqua = [255,255,0] colorFuchsia = [255,0,255] colorYellow = [0,255,255] stardardColors = [colorBlue,colorGreen,colorAqua,colorRed,colorFuchsia,colorYellow,colorWhite] def createImg(depth=3): return cv.CreateImage((800,480),8,depth) def saveImageFile(typeName,img): filename = saveImagePath + typeName + .png cv.SaveImage(filename,img) print typeName+.png, ... ok def createOneColorImage(color): img = createImg() cv.Set(img,color) return img def create64GrayImage(): img = createImg(1) cv.SetZero(img) for xPos in range(0,64): cv.SetImageROI(img,(int(12.5*xPos),0,800,480)) cv.Set(img,xPos*255/63) cv.ResetImageROI(img) return img def createCheckBoardPattern(isReserved=False): img = createImg(1) boolColor = True numsX = 4 numsY = 4 pixsX = 800/numsX pixsY = 480/numsY for x in range(0,numsX): for y in range(0,numsY): cv.SetImageROI(img,(x*pixsX,y*pixsY,(x+1)*pixsX,(y+1)*pixsY)) boolColor = not (x%2) ^ (y%2) ^ isReserved cv.Set(img,255*boolColor) cv.ResetImageROI(img) return img def createStardardImage(): img = createImg() pixs = 800./7 for i in range(0,7): cv.SetImageROI(img,(int(i*pixs),0,int(i*pixs+pixs),480)) cv.Set(img,stardardColors[i]) cv.ResetImageROI(img) return img if __name__ == __main__: print Start Gen Test Screen Files ... saveImageFile(red,createOneColorImage(colorRed)) saveImageFile(green,createOneColorImage(colorGreen)) saveImageFile(blue,createOneColorImage(colorBlue)) saveImageFile(white,createOneColorImage(colorWhite)) saveImageFile(black,createOneColorImage(colorBlack)) saveImageFile(64gray,create64GrayImage()) saveImageFile(checkboard Pattern,createCheckBoardPattern()) saveImageFile(checkboard Pattern(inverted),createCheckBoardPattern(True)) saveImageFile(standard,createStardardImage()) print Generate Success!