|XP is just a number|
Thanks for your answer ! Imager and PDL are nice modules. I did not know them up to now. Really worth to invest some time.
It took me a while to install Imager. The problem was that the libpng was missing ..... But now its running.
$data =~ tr/\0\377/01/;
can be removed, if the ascii code is already used in the "if" of transform2:
49 48 if
I could not manage to install PDL yet. Prerequisite 'Module::Compile' is not passing for WIN 10 (report). Only one test is failing.(data1_t). Any idea what I could do here ? Force install ?
I saw also minor differences in the output of my code and yours. I guess that the decoding of the PNG is done minor differently in the different modules. I have to read more about png coding if this idea can be true or compare the color at some dedicated pixels.