 | Expert | | Join Date: Jul 2006 Location: Norway
Posts: 112
# 1
Aug 15 '09
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Do you remeber the OTA format? The simple graphic format that you could send as a SMS message? Anyway, I found a cool OTA image on my cellphone, and wanted to extract it to a "normal" graphics format, and add it to a t-shirt (it also writes the image out to stdout as a number of '#'s) -
#ota2tga
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def writetga(width,height,data,filename):
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f = open(filename,"wb")
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file = ""
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file+="%c%c%c" % (0,0,2)
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file+="%c%c%c%c%c" % (0,0,0,0,0)
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file+="%c%c%c%c" % (0,0,0,0)
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file+="%c%c" % ((width & 0x00ff)%0xff,(width & 0xff00)%0xff)
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file+="%c%c" % ((height & 0x00ff)%0xff,(height & 0xff00)%0xff)
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file+="%c%c" % (0x18,0x0)
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for i in range(height):
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for j in range(width):
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file+="%c%c%c" % (data[j+(height-1-i)*(width-1)][0],data[j+(height-1-i)*(width-1)][1],data[j+(height-1-i)*(width-1)][2])
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f.write(file)
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f.close()
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# add the name of your .ota file here.
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f = open("Grafikkmelding.ota","rb")
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info = ord(f.read(1))
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width = ord(f.read(1))
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height = ord(f.read(1))
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color = ord(f.read(1))
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pixmap = [[255,255,255]]*(72*28)
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print width
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print height
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x = 0
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y = 0
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l = ""
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for i in range(height):
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for j in range(width / 8):
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v = ord(f.read(1))
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for k in range(8):
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if( ((v >> 7-k) & 0x01) == 0):
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l+=" "
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pixmap[x+y*width] = [255,255,255]
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else:
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l+="#"
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pixmap[x+y*width] = [0,0,0]
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x+=1
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if(x > width):
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x=0
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y+=1
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l+="\n"
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f.close()
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print l
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writetga(width,height,pixmap,"output.tga")
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-kudos
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