我正在尝试制作一个在象限中具有颜色变化的图像 在每一个。我已经设法完成了一半的图像,但另一半只是模糊了 - 并且没有错误消息。知道出了什么问题吗?我要右上灰度,右下黑白
这是我的代码:
import cImage as image
img = image.Image("/home/users/groth1/Downloads/selfie.JPG")
newimg = image.EmptyImage(img.getWidth(), img.getHeight())
win = image.ImageWin(title="Pic",width=img.getWidth(),height=img.getHeight())
img.draw(win)
xQuadrantBoundary = img.getWidth()//2
yQuadrantBoundary = img.getHeight()//2
for row in range(img.getHeight()):
for col in range(img.getWidth()):
p = img.getPixel(col, row)
if row < yQuadrantBoundary:
if col < xQuadrantBoundary:
# upper left negative
newred = 255 - p.getRed()
newgreen = 255 - p.getGreen()
newblue = 255 - p.getBlue()
newpixel1 = image.Pixel(newred, newgreen, newblue)
img.setPixel(col, row, newpixel1)
elif col >= xQuadrantBoundary:
# upper right grayscale ***
red = p.getRed()
green = p.getGreen()
blue = p.getBlue()
avg = (red + green + blue) / 3.0
newpixel2 = image.Pixel(newred, newgreen, newblue)
img.setPixel(col, row, newpixel2)
elif row >= yQuadrantBoundary:
if col < xQuadrantBoundary:
# lower left no green
newred = p.getRed()
newgreen = 0
newblue = p.getBlue()
newpixel3 = image.Pixel(newred, newgreen, newblue)
img.setPixel(col, row, newpixel3)
elif col >= xQuadrantBoundary:
# lower right black and white ***
red = p.getRed()
if red > 140:
val = 255
else:
val = 0
newpixel4 = image.Pixel(newred, newgreen, newblue)
img.setPixel(col, row, newpixel4)
img.draw(win)
win.exitonclick()
最佳答案
newpixel2 = image.Pixel(newred, newgreen, newblue)
应该是
newpixel2 = image.Pixel(avg, avg, avg)
和
newpixel4 = image.Pixel(newred, newgreen, newblue)
应该是
newpixel4 = image.Pixel(val, val, val)
否则您将重用上次计算的 newred
、newgreen
和 newblue
值,因此会出现颜色“条纹”。
关于python - 一半图像在 elif 语句中模糊,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/29068466/