Legacy ImageMagick Discussions Archive

Hi,
how would a command line in Win look to achieve appending a series of cropped images into a final image ?
My images have sequencial numbering (image.0001.png, image.0002.png, ...) which i got from rendering an animation where the camera rotates around the y-axis. By assembling vertical strips of only a few pixels width to a whole image, i receive a panorama image.

I've seen http://www.imagemagick.org/Usage/layers/ but wasn't able to pull together the necessary syntax for my case yet (newbie), so that i can say i have 180 images that need to be cropped and appended.

Regards,
Frank

Do your images overlap? Do they offset in the vertical dimension?

If you just need to append them side by side with no offsets, then see +append

http://www.imagemagick.org/Usage/layers/#append

If they overlap or offset, then see -mosaic, but you need to know exactly how to offset them as X,Y offsets for -page arguments

http://www.imagemagick.org/Usage/layers/#mosaic

Hi,
thank you for reply. I wanted to put the formula with the following functionality, is it possible as 1 command that loops through 180 pictures and creates the final file ? Pls help with the necessary syntax.

convert ^
-frame 1-180 <<looping image.0001.png - image.0180.png>> ^
-crop image..png ( -crop 958,x961+3+1080 'Foreground_%[filename:names].png' \) <<cropping out a stripe of x 3 pix and y 1080 pix>> ^
-append <<appending them from left to right without overlap>> ^
result_image.png <<being 180 * 3 pix = x 540 pix, and y = 1080 pix>>


can i insert commenting in my code, so i understand it later on when adjusting to other tasks ?

Frank

Frank1000 wrote:Hi,
thank you for reply. I wanted to put the formula with the following functionality, is it possible as 1 command that loops through 180 pictures and creates the final file ? Pls help with the necessary syntax.

convert ^
-frame 1-180 <<looping image.0001.png - image.0180.png>> ^
-crop image..png ( -crop 958,x961+3+1080 'Foreground_%[filename:names].png' \) <<cropping out a stripe of x 3 pix and y 1080 pix>> ^
-append <<appending them from left to right without overlap>> ^
result_image.png <<being 180 * 3 pix = x 540 pix, and y = 1080 pix>>


can i insert commenting in my code, so i understand it later on when adjusting to other tasks ?

Frank

You will have to write a script to do the looping.

I am not a windows user, and since scripting syntax is different, you will have to wait for a Windows user to try to help make this into a bat file for you or at least a set of commands that loops that you can cut and paste.


You cannot add a comment within a single IM convert command, but can put comments in the script between convert commands.
see
viewtopic.php?f=1&t=24624

ok thx, ya someone who can help me with the Windows syntax.

Doing this in a single convert will read all the images into memory. If each is 2000x1000 pixels, at 6 bytes/pixel, 180 images, you need 2 GB memory. So I would do this in stages.

1. Within a FOR loop, convert each image, cropping to 3 pixels wide.

2. Convert these 180 files, each 3 pixels wide, with "+append".

Note that "-crop" takes 4 parameters: {width}x{height}+{x_offset}+{y_offset}. So it might be "-crop 3x1080+958+0".

ok thx.
how is the syntax to make a FOR loop in a .bat ?

my images go from image.0001.png to image.0180.png.
is this going in the right direction to write it in a .bat file ?:


SET startframe=%0001
SET endframe=%0180
SET times=%180

convert ^
FOR image.%startframe%.png
-crop 3x1080+958+0

FOR is a Windows command, not ImageMagick. Type "help for" at the command line.

that is too complicated for me, does someone know how the correct syntax would be ?

Something like this:

ok thx
Tried it out, but giving me :

Invalid Parameter - -crop


My image name has two dots before the number and I've inserted it this way : maybe that is the reason ?


set startframe=1
set endframe=180

del sub_*.png

for /L %%i in (%startframe%,1,%endframe%) do (
set NUM=000%%i
set NUM=!NUM:~-4!

convert my_image..!NUM!.png -crop 3x1080+958+0 +repage sub_!NUM!.png
)

convert sub_*.png +append out.png

Invalid Parameter - -crop

That error message is from the Windows "convert" command.

Okay. First step: have you installed ImageMagic? Is it on your path?

ok sure, I forgot to point to the command right. Now I get the command running but it wouldn't yet read the images "Ritter_01_02..0001.pnd ...)



I have copied the .bat into the directory where the image files sit. and calling it from there.

Insert the following line at the start of your command file: