Paste image on coordinates outputted previously [SOLVED]

[Rye]

Well in a previous thread of mine it was possible to get ImageMagic to output these coordinates (viewtopic.php?f=1&t=22925).

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0 (0) @ 39,37

The question now however is:

How do I have to proceed from here in order to paste a new image (say new_image.png for example) onto that coordinate ?

[snibgo]

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set SRC="22 HP+200.png"
set REP="newImage.png"

"%IMG%convert" ^
  %SRC% ^
  ( %REP% -geometry +39+37 ) ^
  -composite ^
  x.png

[Rye]

Is there a way to automatically reuse the previous coordinate output instead of having to type it manually each time?

[snibgo]

Yes. For example, redirect the compare output stderr to a file ...

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"%IMG%compare" -metric RMSE %SRC% %SUB% -dissimilarity-threshold 1 -subimage-search found.png 2>y.txt

... then read that file with "for".

[Rye]

Alright...

That is good so far, except for one thing I don't understand... (refering to the other topic):

I have this image:


and replaced all with those:


(3 were replaced).

Now however, Imagmagick just finds one that doesn't actually fit my search:

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2010.26 (0.0306746) @ 59,19

Is there a way to make the search more "pixel perfect" ?

It seems weird that it finds stuff that isn't even matching 100%...

[snibgo]

As I said in the other topic:

Then repeat until the number in brackets is no longer (0).

[Rye]

Ok you are right.

Last question:

Is it possible to get ImageMagick to output this

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59,19

instead of this:

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2010.26 (0.0306746) @ 59,19

[snibgo]

Not as far as I know.

[fmw42]

You can pipe the output to sed (unix) and filter it to show only the part you want. I do not know the equivalent for Windows.

[fmw42]

For reference, though not useful in Windows without Cygwin, see my bash shell script, maxima, at the link below.

You would only need one pass of compare, then get the coordinates from maxima, then use -flatten to composite your template at each coordinate in one command (or use multiple -compose over commands for each location).

[snibgo]

sed is available on Windows, eg in the Cygwin package.

For something this simple, the "for" command works fine.

[Rye]

Thats funny...

Source image:


pattern to replace:

replacing pattern(new one):

RESULT:



^ What is this ?

[snibgo]

It works fine for me: compare finds the best location. The RMSE isn't zero, because the "pattern to replace" doesn't occur in the source.

[Rye]

Try it yourself with these two and see for yourself (I had posted the wrong ones):
(try it as often as possible... lets say 8 times)

[snibgo]

What are you saying? What do you think it should do after, say, 8 times?