Binary representation of ASCII values
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I have an image of size mXn and I want to generate the 8-bit representation of ASCII value of character/pixel and want to insert that into an array. how to proceed?
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Walter Roberson
on 8 Sep 2013
dec2bin(Value, 8) - '0'
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Walter Roberson
on 8 Sep 2013
dec2bin(Value + '0', 8) - '0'
provided that all the entries are single digit, and that you are not wanting to put in any spaces.
If the entries might be multi-digit, then are they always the same number of digits? If not then how do you want the empty locations indicated? As if they had printable 0's at the front? Or do you want the binary of a space character inserted? Should the empty-location processing be consistent per-row, per-column, or over the whole array ?
Image Analyst
on 8 Sep 2013
We don't know what you mean. Your pixel's 8 bit values are already IN binary since it's digitized in the computer. So the only other way is to show it as a string, as Walter showed you. Since you didn't like that, I don't know what you want. Perhaps you want im2html: http://www.mathworks.com/matlabcentral/fileexchange/32273-im2html-m
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Image Analyst
on 8 Sep 2013
That's precisely what Walter showed. Something like you showed HAS to be a string. If it were a number, say an integer, then 00110001 would really be 110,001 (one hundred ten thousand and one). I doubt that's what you want - if it is, explain why, because I see no use for that (turning 1 into 110,001, and turning 2 into 110,010, etc.) - I mean, they would not even be consecutive numbers anymore. What sense would that make???
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