image - MATLAB: Problems with dwt2 using uint8 values -


when trying piece of code:

[x, map] = imread('pirate.tif'); [ca,ch,cv,cd] = dwt2(x, 'haar');

i following error: undefined function 'dwt2' input arguments of type 'uint8'. isn't dwt2 suppose handle uint8 values?

thx time...


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