MATLAB: I want to apply DPCM to an image

dpcmpixels

i want to apply DPCM coding to an image or pixels. plz tell me the code i am a learner.

[20 30 20 30 20 
 30 60 70 90 40
40 60 50 60 70
30 50 60 70 50
80 50 40 30 20]

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http://www.mathworks.com/matlabcentral/answers/218233-i-want-a-differential-pulse-code-modulation-dpcm-matlab-code-for-images

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MATLAB: How to plot a graph within a certain range

Hi,

This should fix your problem,

y=[20.50,20.50,20.50,20.50,20.50,20.50,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.620.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.70,20.70,20.60,20.60,20.70,20.70,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20.60,20 60,20.60,20.60,20.60,20.60,20.60,20.60,20.50,20.50,20.50,20.50,20.40,20.40,19.80,19.80,19.00,19.00,18.40,18.40,18.20,18.20,17.80,17.80,17.30,17.30,16.90,16.9 16.60,16.60,16.30,16.30,16.20,16.20,16.20,16.20,16.00,16.00,15.60,15.60,15.40,15.40,15.10,15.10,14.60,14.60,14.40,14.40];
x = 1:1:100;
plot(x,y)

Regards

MATLAB: 300dpi or 300dpcm

It's DPI, based on the documents provided by MathWorks here: https://www.mathworks.com/help/matlab/ref/print.html#inputarg_resolution

This is what they say:

"Resolution, specified as a character vector or a string containing -r and an integer value indicating the resolution in dots per inch. For example, '-r300' sets the output resolution to 300 dots per inch. To specify screen resolution, use '-r0'."

Doesn't say anything about dpcm, which would make unit conversion confusing actually...

If you want to use dpcm, you'd have to calculate and use the dpi equivalent.

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MATLAB: How to plot a graph within a certain range

MATLAB: 300dpi or 300dpcm

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