我是 Python 的新手,我正在尝试学习用 Python 处理图片。下面这段代码是创建图片的镜像,然后将其淡化为白色。但是当我执行代码时出现以下错误“错误是:'int'和'function'不适当的参数类型。尝试使用无效类型的参数调用函数。这意味着你做了诸如试图将字符串传递给需要整数的方法。” 我不确定是什么导致了这个错误,我需要帮助。
def blendWhite(pixcel, fadeAmount):
newRed = 255 * fadeAmount + getRed(pixel) * (1 - fadeAmount)
newGreen = 255 * fadeAmount + getGreen(pixel) * (1 - fadeAmount)
newBlue = 255 * fadeAmount + getBlue(pixel) * (1 - fadeAmount)
setColor(pixel, makeColor(newRed, newGreen, newBlue))
def copyAndMirrorCat():
catFile = getMediaPath("caterpillarSmall.jpg")
catPict = makePicture(catFile)
width = getWidth(catPict)
height = getHeight(catPict)
canvas = makeEmptyPicture(width, height * 2)
# Now, do the actual copying
for x in range(0, width):
for y in range(0, height):
color = getColor(getPixel(catPict, x, y))
setColor(getPixel(canvas, x, y), color)
h = height * 2
fadeAmount(y, h)
blendWhite(getPixel(canvas, x, (height * 2) - y - 1), fadeAmount)
show(catPict)
show(canvas)
return canvas
def fadeAmount(y, h):
fm = (h - y) / float(h) + 0.15
if fm > 1:
fm = 1
return fm
结果如下所示:http: //imageshack.us/a/img442/326/mirrorlinearwithwhite.jpg