模糊图片（Python、Jython、图片编辑）

Question

尝试在 Jython 中模糊图片。我所拥有的确实可以运行，但不会返回模糊的图片。我有点不知道哪里出了问题。

最终（工作）代码编辑如下。感谢大家的帮助！

def main():

pic= makePicture( pickAFile() )
show( pic )
blurAmount=10
makeBlurredPicture(pic,blurAmount)
show(makeBlurredPicture(pic,blurAmount))

def makeBlurredPicture(pic,blurAmount):

w=getWidth(pic)
h=getHeight(pic)
blurPic= makeEmptyPicture( w-blurAmount, h )
for px in getPixels(blurPic):
  x=getX(px)
  y=getY(px)
  if (x+blurAmount<w):
     rTotal=0
     gTotal=0
     bTotal=0
     for i in range(0,blurAmount):
         origpx=getPixel(pic,x+i,y)
         rTotal=rTotal+getRed(origpx)
         gTotal=gTotal+getGreen(origpx)
         bTotal=bTotal+getBlue(origpx)
     rAverage=(rTotal/blurAmount)
     gAverage=(gTotal/blurAmount)
     bAverage=(bTotal/blurAmount)

     setRed(px,rAverage)
     setGreen(px,gAverage)
     setBlue(px,bAverage)
return blurPic

伪代码如下： makeBlurredPicture(picture, Blur_amount) 获取图片的宽度和高度，并用尺寸制作一张空图片 (w-blur_amount, h ) 将此称为blurPic

for loop, looping through all the pixels (in blurPic)
    get and save x and y locations of the pixel
     #make sure you are not too close to edge (x+blur) is less than width 
            Intialize rTotal, gTotal, and bTotal to 0
             # add up the rgb values for all the pixels in the blur
             For loop that loops (blur_amount) times
                    rTotal= rTotal +the red pixel amount of the picture (input argument)               at the location  (x+loop number,y)     then same for green and blue
             find the average of red,green, blue values, this is just  rTotal/blur_amount (same for green, and blue)
             set the red value of blurPic pixel to the redAverage  (same for green and    blue)
return blurPic

Answer 1

问题是您正在覆盖外部循环中的变量 px，该变量是模糊图像中的像素，其中包含原始图像的像素值。
因此，只需将内部循环替换为：

for i in range(0,blurAmount):
    origPx=getPixel(pic,x+i,y)
    rTotal=rTotal+getRed(origPx)
    gTotal=gTotal+getGreen(origPx)
    bTotal=bTotal+getBlue(origPx)

为了显示模糊的图片，将 main 中的最后一行更改为

show( makeBlurredPicture(pic,blurAmount) )

Answer 2

以下是执行此操作的简单方法：

import ImageFilter

def filterBlur(im):

    im1 = im.filter(ImageFilter.BLUR)

    im1.save("BLUR" + ext)

filterBlur(im1)

有关图像库的完整参考，请参阅：http:// /www.riisen.dk/dop/pil.html

Answer 3

def blur_image(image, radius):
    blur = image.filter(ImageFilter.GaussianBlur(radius))
    image.paste(blur,(0,0))
    return image