I have several images with different sizes.
1.jpg
2.jpg
3.jpg
I need to arrange them on 1 layout in the following order:
1st image in the top-left corner
2nd in the middle
3rd in the middle
(as in the example: http://postimg.org/image/4wcf5l0gl/ )
I try smth like:
montage 1.jpg 2.jpg 3.jpg -mode concatenate -tile 1x3 out.jpg
but 2nd and 3rd appear on the left side.
You can easily do this with the convert program by a sequence of -append operations. In the simplest case:
convert 1.jpg 2.jpg -append 3.jpg -gravity center -append out.jpg
Note that order of operations goes from left to right with convert. I load two images, and append them together. Then I load image #3 and change the -gravity setting to center, to perform a centered append (instead of a "left justified" one). Last is the output filename.
You can add the text at the top by generating a label and putting a horizontal append (+append) in its proper place in the sequence:
convert 1.jpg label:'text from file-name' +append 2.jpg -append 3.jpg -gravity center -append out.jpg
To pad the images with space around them, use -border on each individual image before appending. You can use grouping parentheses to limit the effect of any operation to only certain images*:
convert 1.jpg label:'text from file-name' -bordercolor white -border 10 +append \( 2.jpg -border 10 \) -append \( 3.jpg -border 10 \) -gravity center -append out.jpg
You can get more and more elaborate from here. Just remember that order of operations proceeds from left to right, and operations can be limited to certain images by use of grouping parentheses.
*footnote: The syntax of the commands above assume a typical unix/linux shell environment. The syntax will have to be adapted if you are using some other environment.
Related
I want to split some images by percentage using ImageMagick.
To be more precise, I want to split an image into two images. The output-image of the left side should be 55% of the left side of the original image, the output-image of the right side should be 55% of the right ride of the original image.
(In case I am not making myself clear: The point is that there is sometimes important information in the middle of the images and this information would be cut off if we split the images exactly in the middle.)
What I have so far is this: mogrify -crop 55%x100% +repage -path ./cropped *.jpg
So at the moment, I am splitting the image into two and saving it in the "cropped"-folder. BUT, only the left side is 55% of the left side of the original image, the right side is 45% of the right side of the original image.
As this is my first time working with ImageMagick, I would really appreciate your help!
Here is another approach to splitting an image to create two output images that are 55% from the left and 55% from the right of the original...
convert input.png -set filename:0 "%[t]" \
\( +clone -roll +55+0% \) -extent 55x100% "%[filename:0]_%d.png"
That starts by setting a file name variable to use for the output. Then it makes a clone of the input image, and rolls it 55% to the right. The result is moving the rightmost 55% of the image out of the frame to the right and back into the frame on the left. Then after the parentheses a simple -extent operation keeps the leftmost 55% of each image. The output files are named from the input file with a "_0" or "_1" added.
As fmw42 suggested, you can make a loop command to run on multiple inputs, and include the path names in the command for your output files.
I think you would have to run a script loop over each image and use convert rather than mogrify. Mogrify can only output one image for each input image. You do not say what platform/OS or what version of ImageMagick. The following assumes Unix-like system with IM 6 and is one way to do that.
infile="original_file.suffix"
convert "$infile" -set filename:fname "%t" -write mpr:img +delete \
\( mpr:img -gravity west -crop 55x100%+0+0 +repage +write "path_to/cropped/%[filename]_0.suffix" \) \
\( mpr:img -gravity east -crop 55x100%+0+0 +repage +write "path_to/cropped/%[filename]_1.suffix" \) \
null:
Or, you could just run mogrify twice. Once for the left side and once for the right side. Use -gravity to control which as in the convert command.
I have two files;
1.jpg = 14000x2800 pixels
2.jpg = 2800x128 pixels
I use the following command:
...\convert.exe -auto-orient -quality 100 -append "1.jpg" "2.jpg" "out.jpg"
The goal is to merge the images together on the vertical axis, and it works great but now I need to add a straight horizontal black line between images (line's length should be the biggest file's length, meaning from left to right) while appending.
Is there any way to do that without a second command?
Easier description with MSPaint skills
Here's a way to do it:
magick 1.jpg 2.jpg -size "%[fx:u.w>v.w?u.w:v.w]x10" xc:black -swap 2,1 -append result.png
That says... load 1.jpg and 2.jpg. Define the width for the canvas we create next as "whatever is the wider of 1.jpg (referred to as u) and 2.jpg (referred to as v)" by 10 pixels tall. Create a black canvas that size. Now swap the order so that the canvas we just created is between the two images. Append all 3 images and save.
That gives you one of these, depending which one you load first:
If you want the unfilled, white background area beside the narrower image to be, say magenta, use:
magick -background magenta 1.jpg 2.jpg -size "%[fx:u.w>v.w?u.w:v.w]x10" xc:black -swap 2,1 -append result.png
Keywords: ImageMagick, image processing, wider, widest, taller, tallest, match existing image width, match height.
I have an image a.png of size 800x600, and two images b.png and c.png of size 400x300 each. I want to montage (insert) the three images without size changes into a png image of size 800x900, such that a.png is at the top, and b.png and c.png side-by-side underneath.
How can I do this with imagemagick convert or montage?
Generate sample images, 1/10th the real size:
magick -size 80x60 -background red -gravity center label:"A" a.png
magick -size 40x30 -background lime -gravity center label:"B" b.png
magick -size 40x30 -background blue -gravity center label:"C" c.png
Now, you can load A, and inside parentheses, load B and C and place side-by-side as a new image, then append that result below A:
magick a.png \( b.png c.png +append \) -append result.png
Or, if you dislike the parentheses, you can join B and C side-by-side into a single image, load A, swap the order so A is at the top and then append the combined image below:
magick b.png c.png +append a.png +swap -append result.png
Note the distinction between:
+append meaning "append to the right", and
-append meaning "append below".
Note that, in addition to +append and -append, there are the newer tools called +smush and -smush which do exactly the same but take a parameter which is the number of pixels to offset the appending. So if you do +smush 5 it will do the same as +append but leave 5 pixels of background colour showing in the new gap between the images. If you use a negative offset, it will append in the same place but overlap the two images by the offset.
Here's an example, I make the background magenta and smush B and C with a 10 pixel gap. Then change the background to yellow before smushing the result below A with a 15 pixel offset.
magick -background magenta b.png c.png +smush 10 a.png +swap -background yellow -smush 15 result.png
If still using v6 ImageMagick, replace magick with convert.
I have some png images that I want to split it into parts, like by grid or size.
But each part should have the same bounding box (transparency) as original image.
Example:
Splitting image into 2 parts.
Original: 200 × 89
Output:
part_1.png, 200 × 89
part_2.png, 200 × 89
Can ImageMagick do this? Or any other app or method.
My actual goal is to split into 100+ slices images.
EDIT:
Another goal to have an indents for each slice. Say indent = 10px.
Example:
Input: 200 x 100
Output:
part_1.png, 200 x 100
part_2.png, 200 x 100
And just as example, to visually compare input and output: combined output images in Photoshop as layer added one onto another
200 x 100 :
Also this is showing input image added onto combined(so it's better to see what was cropped and how):
In ImageMagick, you can split an image into many parts with the -crop command. For your example above with two parts, you can do that with the following commands. ImageMagick will append -0, -1 ... to the output file names.
ImageMagick 6:
dim=`convert image.png -format "%wx%h" info:`
convert \( -size $dim xc:none \) null: \( image.png -crop 50x100% \) -layers composite result.png
ImageMagick 7:
magick \( image.png -set option:dim "%wx%h" -crop 50x100% \) null: \( -size "%[dim]" xc:none \) -reverse -layers composite result.png
The results are:
See
http://www.imagemagick.org/Usage/crop/#crop
http://www.imagemagick.org/Usage/crop/#crop_percent
http://www.imagemagick.org/Usage/crop/#crop_tile
http://www.imagemagick.org/Usage/crop/#crop_quad
http://www.imagemagick.org/Usage/crop/#crop_equal
http://www.imagemagick.org/script/command-line-options.php#layers
Note that -crop keeps the virtual canvas information if you do not add +repage afterwards. So to put the individual images back into their original placement, you have to composite them onto a transparent background the size of the input. That is done in one command using -layers composite using the null: separator.
Here is another way to add transparent areas between parts of a crop in ImageMagick. Crop the image into pieces, chop off the parts you want to remove, then pipe to montage to add the spacing back.
Input:
Here I make this into a 4x4 grid of images with 10 pixel spacing:
convert lena.png -crop 25%x25% +repage -gravity east -chop 10x0 -gravity south -chop 0x10 +repage miff:- | montage - -background none -tile 4x4 -geometry +5+5 result.png
To answer your new question, you can do that with a script loop. On a Unix-like platform, assuming your images do not have spaces, you can do the following:
cd path/to/current_folder
list=`ls *.png`
for img in $list; do
name=`convert $img -format "%t" info:`
dim=`convert $img -format "%wx%h" info:`
convert \( -size $dim xc:none \) null: \( $img -crop 50x100% \) -layers composite -scene 1 path/to/new_folder/${name}_%d.png
done
If you want leading 0s in the output, say 3, use path/to/new_folder/${name}_%03d.png.
Note that to start with 1 rather than 0, I have added -scene 1.
Sorry, I do not know how to script for Windows.
Please always provide your ImageMagick version and platform.
In ImageMagick, the best way to put transparent areas into your image is with a binary mask that is put into the alpha channel of your image.
convert input.png \( -size 200x89 xc:white -size 10x89 xc:black -gravity center -composite \) -alpha off -compose copy_opacity -composite result.png
You can add as many blank areas as you want by adding more white areas to the mask or by tiling out one region of black and one region of white to create the mask with regular spacing of black and white.
Edited to add this ImageMagick 6 example which splits the input image into 4 pieces, 25% of the original width and 100% of its height, then creates a transparent canvas for each piece the same dimensions of the input image, and locates the pieces at their original offsets on those canvases.
convert input.png -set option:distort:viewport %[w]x%[h] -crop 25x100% \
-virtual-pixel none -distort affine "0,0 %[fx:s.page.x],%[fx:s.page.y]" out%03d.png
The output file names will be numbered starting from zero like "out000.png", etc.
Original message...
Here's a simple command using ImageMagick 7 that can crop an image into any number of pieces, and output all the pieces at their original offsets on transparent backgrounds of the original input dimensions...
magick input.png -crop 100x1# -background none \
-extent "%[fx:s.page.width]x%[fx:s.page.height]-%[fx:s.page.x]-%[fx:s.page.y]" out%03d.png
That "-crop 100x1#" tells it to split the image into a grid 100 pieces wide by 1 piece high. You could just as well specify the crop sizes as percents or numbers of pixels.
Edited again to add:
This following command will split the input image into the individual pieces specified with the "-crop" operator, then shave 5 pixels from every side of each piece, then apply a 5 pixel transparent border to every side of each piece. It will still remember the original locations of the pieces within the input canvas, so the "-distort affine ..." can extend the canvases and place the pieces where they were in the input image.
convert input.png -set option:distort:viewport %[w]x%[h] \
-bordercolor none -background none -virtual-pixel none \
-crop 25x100% -shave 5x5 -border 5x5 \
-distort affine "0,0 %[fx:s.page.x],%[fx:s.page.y]" out%03d.png
To use this command with IM7 you need to change "convert" to "magick".
Given the changes of requirements provided by Kamikaze, here is one way to achieve the split with indent in ImageMagick, assuming I understand correctly.
dim=`convert image.png -format "%wx%h" info:`
convert \( -size $dim xc:none \) null: \( image.png -crop 50x100% -shave 5x5 \) -geometry +5+5 -layers composite result.png
To check, I flatten over a blue background:
convert result-0.png result-1.png -background blue -flatten result.png
I want a combined command that can perform the following task in single execution. I searched the internet, but hardly found any tutorial that guide us to write any stack command. I can found single command for each operation, such as -composite, -blur, etc, and I know I can pipe the command as such
convert ... mpr:- | convert ... mpr:- | ... | convert ... png:-
However, I want a combined command that use \( ... \) and mpr:{label} since this will increase the performance as all operations are executed in single process (pipeline in shell can degrade the performance, and the process sequence is required to be in order).
The process sequence as such:
put flower.png on top of the frame.png -> mpr:framedFlower
put mpr:framedFlower on top of the background.png -> mpr:out2
blur the heart.png, right-gradient-transparent the smiley.png and put both image on top of mpr:out2 -> mpr:out3
annotate the mpr:out3 with "Hello world" (placement=bottom) -> png:-
I don't include the commands that I have tried because they are too messy and it will be an insult to those users who read it. I tried for many hours, but can't get it done. Please advise.
I haven't spent ages futzing with the exact coordinates as I am only using sample pictures, but this one-liner contains every technique you need to do what you are asking.
There is basically one line of code per element in the final image:
convert frame.png -resize 500x400\! \( flower.png -resize 400x300\! \) -gravity center -composite \
background.png +swap -gravity northwest -geometry +100+150 -composite \
\( heart.png -resize 200x200 -blur 0x8 \) -geometry +1200+250 -composite \
-gravity south -pointsize 72 -fill red -annotate +0+60 'Hello world' \
\( emoji.png -resize 250x250 -channel a -fx "u.a*(1-(i/w))" \) -gravity northwest -geometry +1200+500 -composite result.png
The first line reads in the picture frame and the flower and resizes them each independently because of the parentheses and then composites the flower into the frame.
The next line loads the background and then uses +swap to put it behind the framed picture from the previous line. It then sets -gravity to northwest as the origin for the ensuing -geometry before compositing the framed picture onto the background.
The next line loads the heart and resizes and blurs just the heart before compositing that onto the main picture at your specified position.
Next up is the annotation - the only interesting thing is that I set the -geometry to south which means that the offsets to -annotate are relative to the bottom centre of the background.
Finally, I load the emoji-thing and resize just it in parentheses before compositing over the main image. The only interesting thing is that I use -fx to alter the alpha channel (-channel a) and I multiply the existing transparency (u.a) by the fraction of the inverse of the distance we are across the image, namely (1-(i/w)).
Hope that is fairly clear!
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