Why isn't one image white and the other black according to my code

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a=ones(78);
>> b=255*ones(78);
>> figure,imshow(a);
>> figure,imshow(b);
>>
If I run the above code then one image should be bright while the other dark(I am using uint8 thus range is 0-255) but the fact is both turn out to be white. May I know why ?

Answers (1)

Ben11
Ben11 on 28 Jul 2014
You don't cast anything as being uint8. Try:
figure, imshow(uint8(a));
then it will be black

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