Image processing

[MAC08]

hi GerdW,

by inverting(reverse) the graph i mean to say that graph sholud look like as image.the graph which is shown in the image is opposite to that of image.

best regards,

MAC

[wiebe@CARYA]

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@MAC08 wrote:

hi GerdW,

i want to invert the graph. how i can do that? 

i need some suggestion.

best regards,

MAC

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Get the maximum and minimum, subtract the minimum from the signal, then subtract the result from the maximum.

[inv] = max([org]) - ( [org] - min([org]) )

or of course:

[inv] = max([org]) +min([org]) - [org]

sometimes however a simple negate works:

[inv] = neg([org])

It does depend on how you define "invert". It could even mean "reverse", inverting left and right (use 'reverse 1D array')...

[GerdW]

Hi MAC,

reverse the (Y) axis…