Examples
Color image
>>> f = iaread('boat.ppm')
>>> iashow(f)
(3, 257, 256) Min= 0 Max= 218 Mean=94.533 Std=57.35
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Binary image
>>> f = iaread('club.pgm')
>>> iashow(f)
(178, 158) Min= 0 Max= 255 Mean=68.220 Std=112.88
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Gray scale image
>>> import Numeric
>>> f = Numeric.resize(range(256), (256,256))
>>> iashow(f)
(256, 256) Min= 0 Max= 255 Mean=127.500 Std=73.90
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Gray scale image with negative values
>>> import Numeric
>>> f = Numeric.resize(range(-100,100), (100,200))
>>> iashow(f)
(100, 200) Min= -100 Max= 99 Mean=-0.500 Std=57.74
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Image Combining
>>> f = iaread('lenina.pgm')
>>> aux,k = iasobel(f)
>>> g = aux > 100
>>> iashow(f)
(256, 256) Min= 36 Max= 255 Mean=88.958 Std=46.38
>>> iashow(g)
(256, 256) Min= 0 Max= 1 Mean=0.051 Std=0.22
>>> iashow((f,g))
unsupported operand types for +: 'int' and 'instance'
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Color set for image combining
>>> f = iaread('lenina.pgm')
>>> iashow(f)
(256, 256) Min= 36 Max= 255 Mean=88.958 Std=46.38
>>> iashow((f,f>100,f>130,f>150,f>180,f>220,f==255))
unsupported operand types for +: 'int' and 'instance'
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