46 lines
2.1 KiB
Python
46 lines
2.1 KiB
Python
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from PIL import Image
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import sys
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if not sys.argv[1:]:
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print("ERROR: No input given")
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sys.exit(1)
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# list of characters sorted from bright to dark
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characters = ['$','@','B','%','8','&','W','M','#','*','o','a','h','k','b','d','p','q','w','m','Z','O','0','Q','L','C','J','U','Y','X','z','c','v','u','n','x','r','j','f','t','/','\\','|','(',')','1','{','}','[',']','?','-','_','+','~','<','>','i','!','l','I',';',':',',','"','^','`','.',' ']
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def map(in_min, in_max,out_min,out_max,x):
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return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min
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def brightness(r,b,g):
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avg= (r+b+g)/3
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return avg
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# print("Please enter Image Name if it if in the same Folder as the Python File, otherwise specify the path to the file!")
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# imgpath=input()
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image = Image.open(sys.argv[1:][0])
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imagewith, imageheight = image.size #get size of image
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print("Please type the desired resolution on the x(width) Axis!(e.g. 150)")
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resolution = int(input())
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# values to scale down the image
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divisor = (int(imagewith/resolution))+1
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outwith = int(imagewith/divisor)
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outheight = int(imageheight/divisor)
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# create an empty 2D Matrix to store the ASCII characters im
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matrix = [[' ' for x in range(outheight)] for x in range(outwith)]
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#write the right characters in the matrix
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for i in range(0,outheight*divisor,divisor): #do steps as big as the divisor, to skip as much pixels as needed for scaling
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for j in range(0,outwith*divisor,divisor): #only until outsize*devisor, because that we mapped devisor input pixels to one output pixel and because of rounding we cannot map i.e. 38 when divisor is 5 and can only go up to outsize*divisor
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xy= j, i
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colors = image.getpixel(xy)
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charnum = int(map(0,255,len(characters)-1,0,brightness(colors[0],colors[1],colors[2])))
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matrix[int(j/divisor)][int(i/divisor)]=characters[charnum]
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#print the matrix
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for i in range(0,outheight,2):
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for j in range(outwith):
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print(matrix[j][i], end = "") #print without a new line at the end
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print() #new line
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