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BhargavGamitBhargavGamit
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+220
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3 files changed

+220
-2
lines changed

‎AverageColoursFilter.py

+93
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# Author Bhargav K
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# Email [email protected]
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# AverageColoursFilter
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from PIL import Image
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i = Image.open("input.png")
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#store pixels of input image
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pixels = i.load()
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width, height = i.size
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k=Image.new(i.mode,i.size)
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print "Filter size should be an odd positive number"
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filtersize=input("Choose the Size of Filter: ")
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print "Type (True) or (False) without braces"
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applyred=input ("Choose to apply red : ")
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applygreen=input("Choose to apply green : ")
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applyblue=input ("Choose to apply blue : ")
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print "Choose Shift Type"
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print "1 None "
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print "2 Shift Left"
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print "3 Shift Right"
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shifttype=input()
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filterwidth=filtersize
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filterheight=filtersize
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filterOffset = (filterwidth-1)/2;
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offsety=filterOffset
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offsetx=filterOffset
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j = Image.new(i.mode,(width+(2*offsetx),height+(2*offsety)))
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for x in range(width+(2*offsetx)):
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for y in range(height+(2*offsety)):
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if(x<offsetx):
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j.putpixel((x,y),(0,0,0))
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if(y<offsety):
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j.putpixel((x,y),(0,0,0))
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if(x>=width):
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j.putpixel((x,y),(0,0,0))
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if(y>=height):
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j.putpixel((x,y),(0,0,0))
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if(x>=offsetx and y>=offsety and x < width and y <height):
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cpixel=pixels[x-offsetx,y-offsety]
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j.putpixel((x,y),cpixel)
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for y in range(height+(2*offsety)):
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for x in range(width+(2*offsetx)):
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if(x>=offsetx and y>=offsety and x < width and y <height):
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blue=0.0
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green=0.0
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red=0.0
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filterx=x-offsetx
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filtery=y-offsety
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for fy in range(filterheight):
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for fx in range(filterwidth):
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cpixel=j.getpixel((x-offsety+fx,y-offsety+fy))
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red+=float(cpixel[0])
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green+=float(cpixel[1])
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blue+=float(cpixel[2])
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red=red/filtersize
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green=green/filtersize
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blue=blue/filtersize
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cpixel=j.getpixel((x,y))
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if(applyred==False):
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red=cpixel[0]
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if(applygreen==False):
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green=cpixel[1]
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if(applyblue==False):
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blue=cpixel[2]
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if(red<0):
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red=0
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if(red>255):
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red=255
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if(green<0):
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green=0
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if(green>255):
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green=255
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if(blue<0):
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blue=0
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if(blue>255):
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blue=255
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if(shifttype==1):
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k.putpixel((x-offsetx,y-offsety),(int(red),int(green),int(blue)))
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if(shifttype==2):
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k.putpixel((x-offsetx,y-offsety),(int(blue),int(red),int(green)))
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if(shifttype==3):
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k.putpixel((x-offsetx,y-offsety),(int(green),int(blue),int(red)))
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k.save('output.png')

‎DilateAndErodeFilter.py

+125
Original file line numberDiff line numberDiff line change
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# Author Bhargav K
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# Email [email protected]
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# Morphological Filters
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# DilateAndErodeFilter
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from PIL import Image
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i = Image.open("input.png")
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#store pixels of input image
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pixels = i.load()
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width, height = i.size
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k=Image.new(i.mode,i.size)
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print "Filter size should be an odd positive number"
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filtersize=input("Choose the Size of Filter: ")
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print "Type (True) or (False) without braces"
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applyred=input("Choose to apply red : ")
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applygreen=input("Choose to apply green : ")
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applyblue=input("Choose to apply blue : ")
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print "Choose Morphology Type"
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print "1 Dilation"
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print "2 Erosion"
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morphtype=input()
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morphresetvalue=0.0
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if(morphtype==2):
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morphresetvalue=255.0
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print "Choose Morphology Edge Type"
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print "1 EdgeDetection"
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print "2 SharpenEdgeDetection"
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edgetype=input()
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filterwidth=filtersize
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filterheight=filtersize
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filterOffset = (filterwidth-1)/2;
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offsety=filterOffset
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offsetx=filterOffset
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j = Image.new(i.mode,(width+(2*offsetx),height+(2*offsety)))
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for x in range(width+(2*offsetx)):
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for y in range(height+(2*offsety)):
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if(x<offsetx):
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j.putpixel((x,y),(0,0,0))
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if(y<offsety):
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j.putpixel((x,y),(0,0,0))
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if(x>=width):
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j.putpixel((x,y),(0,0,0))
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if(y>=height):
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j.putpixel((x,y),(0,0,0))
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if(x>=offsetx and y>=offsety and x < width and y <height):
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cpixel=pixels[x-offsetx,y-offsety]
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j.putpixel((x,y),cpixel)
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for y in range(height+(2*offsety)):
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for x in range(width+(2*offsetx)):
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if(x>=offsetx and y>=offsety and x < width and y <height):
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blue=morphresetvalue
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green=morphresetvalue
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red=morphresetvalue
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filterx=x-offsetx
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filtery=y-offsety
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if(morphtype==1):
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for fy in range(filterheight):
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for fx in range(filterwidth):
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cpixel=j.getpixel((x-offsety+fx,y-offsety+fy))
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if(float(cpixel[0]) > red):
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red=float(cpixel[0])
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if(float(cpixel[1]) > green):
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green=float(cpixel[1])
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if(float(cpixel[2]) > blue):
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blue=float(cpixel[2])
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if(morphtype==2):
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for fy in range(filterheight):
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for fx in range(filterwidth):
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cpixel=j.getpixel((x-offsety+fx,y-offsety+fy))
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if(float(cpixel[0]) < red):
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red=float(cpixel[0])
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if(float(cpixel[1]) < green):
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green=float(cpixel[1])
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if(float(cpixel[2]) < blue):
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blue=float(cpixel[2])
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cpixel=j.getpixel((x,y))
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if(applyred==False):
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red=cpixel[0]
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if(applygreen==False):
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green=cpixel[1]
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if(applyblue==False):
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blue=cpixel[2]
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if(edgetype==1 or edgetype==2):
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if(morphtype==1):
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red=red-cpixel[0]
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green=green-cpixel[1]
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blue=blue-cpixel[2]
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if(morphtype==2):
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red=cpixel[0]-red
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green=cpixel[1]-green
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blue=cpixel[2]-blue
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if(edgetype==2):
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red=red+cpixel[0]
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green=green+cpixel[1]
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blue=blue+cpixel[2]
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if(red<0):
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red=0
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if(red>255):
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red=255
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if(green<0):
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green=0
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if(green>255):
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green=255
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if(blue<0):
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blue=0
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if(blue>255):
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blue=255
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k.putpixel((x-offsetx,y-offsety),(int(red),int(green),int(blue)))
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k.save('output.png')

‎GammaCorrectionAlgo.py

+2-2
Original file line numberDiff line numberDiff line change
@@ -11,10 +11,10 @@
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import random
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i = Image.open("input.png")
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#pixel data is stored in pixels in form of two dimensional array
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pixels = i.load() # this is not a list, nor is it list()'able
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pixels = i.load()
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width, height = i.size
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j=Image.new(i.mode,i.size)
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gamma=input("enter the value of gamma range:0.25 to 2.0")
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gamma=input("Enter the value of gamma range:0.25 to 2.0: ")
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for x in range(width):
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for y in range(height):
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cpixel = pixels[x, y]

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