I'm newbie, any help is appreciated. I'll keep it short.
What I'm doing now is "magick *.jpg -append a.png".
This merges 100+ of .jpg vertically into a .png. Problem is its long so I wanna split it in half so I get shorter a.png and b.png instead of 1 long .png.
I would like to have a single code that does it because there is hundreds of these folders.
You could use montage for that in ImageMagick.
magick montage *.jpg -tile 2x -geometry +0+0 result.png
If you want space between files, then change +0+0 to use non-zero amounts for the spacing. Montage can also add file names under the images if you want using -label %f in the command
Related
i've a huge png image (4000x3000, big.png), and i've smaller images (1500x200, small_n.png) .
I'd like to put the small images onto the big.png based on a starting (x,y) parameter.
So, for instance I've the small_1.png with the starting point (300, 200), and this point should represent the top left corner of the image. How can I put the small_1.png onto the big.png knowing the starting point?
I'd like to use imagemagick, or if not possible, any linux commandline tool.
Thanks.
In ImageMagick, you can do that as follows:
convert large_image.png small_image.png -geometry +300+200 -compose over -composite result.png
If you have several small images, you can repeat the same process multiple times in the same command line.
convert large_image.png small_image1.png -geometry +X1+Y1 -compose over -composite small_image2.png -geometry +X2+Y2 -compose over -composite result.png
If using ImageMagick 7, replace convert with magick.
See https://imagemagick.org/Usage/layers/#convert
I'm assuming ImageMagick is the best option for this, but please let me know if you have other recommendations that can be scripted.
I am trying to replace all the 32x32 tiles of an image with a single tile. This is an example for the original image:
This is the tile that I want to use to replace all tiles on the original image:
And this is what I want the output to be:
I've figured out from other posts on Stack Overflow that I can use ImageMagick's composite option to overlay the tile onto the original image:
$ convert original.png tile.png -composite overlay.png
Resulting in the following:
And I assume by knowing the original images dimensions I can overlay the tile manually multiple times. But is there a way to automate the process. In the example pictures I have given, I need to overlay the tile 8 times on the original 64x128 image.
How can I do this with ImageMagick or another software? And if ImageMagick, would the montage or composite command be a better option?
Edit: As an additional question, would it be possible to skip tiles that are completely transparent?
Input example:
Output example:
It isn't really important to be able to do this part, but would be nice.
If the tile image fits evenly into the dimensions of the original, a command like this should do most of what you want...
convert original.png tile.png -background none -virtual-pixel tile \
-set option:distort:viewport %[fx:u.w]x%[fx:u.h] -distort SRT 0 +swap \
-compose copyopacity -composite overlay.png
That reads in both images. Then it creates another canvas the size of the original and filled with multiple copies of the tile image. Then it uses the original as a transparency mask to create a copy of the new tiled image with the same transparent cells as the original.
I don't know why you would need to overlay the 8 tiles on the original. Just create it from scratch and name the output the same as your original
You could use Imagemagick montage to do that (unix syntax):
nx=`convert original.png -format "%[fx:w/32]" info:`
ny=`convert original.png -format "%[fx:h/32]" info:`
num=$((nx*ny-1))
montage tile.png -duplicate $num -tile ${nx}x${ny} -geometry +0+0 result.png
Here I use convert to duplicated the tile, but it uses a relatively current -duplicate feature. If you do not have a current enough version of Imagemagick, then just repeat the tile in montage as follows:
montage Ro1Lp.png Ro1Lp.png Ro1Lp.png Ro1Lp.png Ro1Lp.png Ro1Lp.png Ro1Lp.png Ro1Lp.png -tile 2x8 -geometry +0+0 result.png
As Fred (fmw42) says, "why don't you just create the whole image from scratch?".
Maybe your description isn't complete, so here are a couple more pieces that might help you work it out.
Given bluetiles.png and singlered.png:
you can position red ones as you wish like this:
convert bluetiles.png \
singlered.png -geometry +0+32 -composite \
singlered.png -geometry +32+96 -composite result.png
Given bluewithtransparent.png:
you can copy its transparency to the newly-created image like this:
convert bluetiles.png \
singlered.png -geometry +0+32 -composite \
singlered.png -geometry +32+96 -composite \
\( bluewithtransparent.png -alpha extract \) -compose copyopacity -composite result.png
I joined images using montage, but the resolution of the image output is less than that of the image's input.
My image's input have dimensions of 640x480 each
But the output that I get was 256x378
I was searching in the web and couldn't find a solution to improve the output's image quality.
The montage command that I'm using
montage -tile 2x3 1.png 2.png 3.png 4.png 5.png 6.png -resize 1024x1024 montage_png.png
Anyone know how can I get better output resolution?
Set the mode of operation style (-mode) to the concatenate value (as in the documentation).
For example:
montage -mode concatenate file1.jpg file2.jpg output.jpg
Suggestion 1
Try it this way... let montage organise the images into a montage and then pass the result on to convert to do the resizing of the result.
montage -tile 2x3 1.png 2.png 3.png 4.png 5.png 6.png miff:- | convert miff:- -resize 1024x1024 montage.png
The intermediate image is passed as a MIFF (Magick Image File Format) which preserves all detail and metadata and quality.
Suggestion 2
If it is always just 5 or 6 images and not hundreds, you can also do it all in one go with convert like this. All you need to know is that +append joins images in a row and -append joins images in a column. So I am joining 1&2 in a row, 3&4 in a row, 5 & 6 in a row and then putting the three rows in a stack and resizing the result.
convert [12].png +append \( [34].png +append \) \( [56].png +append \) -append -resize 1024x1024 result.png
Montage is simple to use like so:
montage -mode concatenate -tile 2x3 *.png -resize 1024x1024 outfile.png
But if you run it a second time this command will also include outfile.png as part of the new montage, of course.
Montage is smart enough to change formats properly, so the command can be changed to:
montage -mode concatenate -tile 2x3 *.png -resize 1024x1024 outfile.jpg
Which results in a file that is 2048 pixels wide.
If the input files are they are all of uniform size, the simplest way is to use it like so:
montage -mode concatenate -tile 2x3 *.jpg outfile.jpg
To the point of the question:
In gnuplot with the png terminal the default canvas size is 640x480, so a 2x3 montage to a proper JPG results in a file that is 1280 pixels wide.
Displayed on a web page that is too wide to print. Print boundaries are roughly 640 pixels wide (depending on how the margins are set), so it will usually work well with:
montage -mode concatenate -tile 2x3 -resize 320x240 *.png outfile.jpg
Using 320x240 preserves the aspect ratio of the original plot.
Forcing it to be square should be done in the set terminal command inside gnuplot if that is the desired outcome.
Best practice for image post-processing is to avoid distorting the image beyond the intent of the program which generates the originals.
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.
I have five images of sizes: 600x30, 600x30, 600x30, 600x30, 810x30. Their names are: 0.png, 1.png, 2.png, 3.png, 4.png, respectively.
How do I merge them Horizontally to make an image of size 3210x30 with ImageMagick?
ImageMagick ships with the montage utility. Montage will append each image side-by-side allowing you to adjust spacing between each image (-geometry), and the general layout (-tile).
montage [0-4].png -tile 5x1 -geometry +0+0 out.png
Other examples can be found on Montage Usage page
ImageMagick has command line tool named 'convert' to merge images horizontally, or for other purpose. i have tried this command and working perfectly on your case:
To join images horizontally:
convert +append *.png out.png
To stack images vertically:
convert -append *.png out.png
Use -resize if the images don't have the same width/height
You can fix the height for all of them with the -resize option, e.g. to fix a 500 pixel height on two images joined horizontally:
convert +append image_1.png image_2.png -resize x500 new_image_conbined.png
Or for vertical joins, you would want to set a fixed width instead:
convert -append image_1.png image_2.png -resize 500x new_image_conbined.png
Example:
image_1.png 1067x600
image_2.png 1920x1080
new_image_conbined.png 889x500
Related:
https://askubuntu.com/questions/226054/how-do-i-join-two-images-together
https://superuser.com/questions/290656/combine-multiple-images-using-imagemagick
How to do it interactively with GIMP
If you need to crop/resize images interactively first, which is often the case, then GIMP is the perfect tool for it, here's a detailed step-by-step: https://graphicdesign.stackexchange.com/questions/83446/gimp-how-to-combine-two-images-side-by-side/145543#145543
SVGs
ImageMagick 6.9.11-60 doesn't handle them, so see:
How to concatenate SVG files lengthwise from linux command line?
https://graphicdesign.stackexchange.com/questions/137096/is-there-a-way-to-stack-two-svgs-on-top-of-each-other
https://graphicdesign.stackexchange.com/questions/90844/joining-together-multiple-svg-images
Very simple with ImageMagick (brew install imagemagick )
convert +append image_1.png image_2.png new_image_conbined.png
Anyone using the MiniMagick rails gem can use the built-in tool to merge images:
# Replace this with the path to the images you want to combine
images = [
"image1.jpg",
"image2.jpg"
]
processed_image = MiniMagick::Tool::Montage.new do |image|
image.geometry "x700+0+0"
image.tile "#{images.size}x1"
images.each {|i| image << i}
image << "output.jpg"
end
Check out the documentation for #geometry options to handle resizing and placement. The current example will resize images to a 700px height while maintaining the image's aspect ratio. +0+0 will place the image with no gaps between them.
The convert +append method described in other answers appends images horizontally, aligned to the top. If you prefer to align to the bottom or center, try:
convert input1.png input2.png -gravity South +append output.png
or
convert input1.png input2.png -gravity Center +append output.png
Source: Fred's ImageMagick Tidbits http://www.fmwconcepts.com/imagemagick/tidbits/image.php#append