Struggeling with running a big query

[forumim]

Hy

I am confused with a long Query:

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convert original.jpg
-resize 1024x683 resized_original.jpg 
-size 1024x768 xc:#e3d4ef background_color.jpg -gravity northwest 
-composite original_on_background.jpg 
-crop 256x256 -quality 60 original_on_background.jpg  mytiles%02d.jpg

I would like:
Resize the original image:

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convert -resize 1024x683 resized_original.jpg 

Creating a background-image in a different size

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convert -size 1024x768 xc:#e3d4ef background_color.jpg

Putting the background-image and the resized-image together

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convert -gravity northwest -composite original_on_background.jpg 

Cutting tiles from the final image (original_on_background.jpg)

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convert -crop 256x256 -quality 60 original_on_background.jpg  mytiles%02d.jpg

Every sigle qery works great.
But when I put together the 4 queries it doesent work.
The original_on_background.jpg ist not what it sholud be. I don't understad what happend exactly.

Mabe it is not possible to work with such big queries.
Mabe i need to run each query in a single way.

(I run the query in PHP: exec(my-query). I think, it is better to run one query than four. Isn't it?)

Aperciate any help, I would like to understand....
Schorsch

[el_supremo]

Try this:

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convert -size 1024x768 xc:#e3d4ef ( original.jpg -resize 1024x683 ) -gravity northwest \
   -composite -crop 256x256 -quality 60 mytiles%02d.jpg

Pete

[Bonzo]

Slightly different method mentioned by Anthony

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<?php
exec("convert ( input.jpg -resize 1024x683 ) -background #e3d4ef -extent 1024x768 -crop 256x256 -quality 60 mytiles%02d.jpg");
?>

[forumim]

This works:

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exec("convert input.jpg -resize 1024x683 output.jpg", $arr, $err);

This doesn't work:

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exec("convert (input.jpg -resize 1024x683) output.jpg", $arr, $err);

Error: 2
Version: ImageMagick 6.2.8 04/17/08 Q16

Any idea, why (...) -stuff doesen't work?

Schorsch

[Bonzo]

Couple of things to try

Note spaces

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( input.jpg -resize 1024x683 )

Escape the ( )

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/(input.jpg -resize 1024x683/)

[forumim]

Thanks! Problem solved:

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exec("convert \( image.jpg -resize 1024x683 \) -background red -extent 1024x768 -crop 256x256 -quality 60 mytiles%02d.jpg", $arr, $err );

but

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-background red 

doesen't work.
It is always black. Dosen't matter, which color I define.

Other Question:

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mytiles%02d.jpg

Can I save the tile-images, so that the images on the first line are named:
mytiles1-00.jpg, mytiles1-01.jpg, mytiles1-02.jpg...

And the tiles on the second line:
mytiles2-00.jpg, mytiles2-01.jpg, mytiles2-02.jpg...

And so on...