i would like to add a series of images to existing one, using imagemagick command line.
i have this image: http://tinypic.com/r/313386r/6 and
i would like to add this to this one: http://tinypic.com/r/k0jbqs/6
to get more or less this effect: http://tinypic.com/r/wtja74/6 .
as you see, this is not only adding an image. i found http://www.imagemagick.org/Usage/compose/ where i could see some examples, but what i need is to fill each 'block'.
i have exact position where each block starts and ends, also i have a scale parameter to scale it down.
i think i could use
composite -geometry +31+105 toadd.gif source.gif newfile.jpg
but this is only one image added, and i need it scaled down.
i was wondering if i can create some kind of rectangles and fill them with my image.
any idea how it can be solved?
Convert would be better as you can keep adding images with composite or layers.
Here is a very rough example and I would probably start off with a longer section of wall so you could crop it when resizing. There is still going to be quite a bit of user input to fix the locations as I pressume you do not always have the same amount of walls at the same length.
I would write some code to input details into a form as it would be easier than altering the code each time.
convert k0jbqs.jpg \
( 313386r.png -thumbnail x25 ) -gravity west -geometry +0+30 -composite \
( 313386r.png -thumbnail x25 ) -gravity center -geometry +80+30 -composite \
( 313386r.png -thumbnail x25 ) -gravity east -geometry +0+30 -composite \
output.png
You would need to take the line breaks out I just added those to make the code readable.
NOTES: Thumbnail resizes the brick image; you can forget the gravity and just use -geometry and the numbers are the positions from the top left corner and -composite puts the new image over the previous image.
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'm trying to use ImageMagick to compose different pieces of a rendered PDF into a target. E.g., I want to have ImageMagick render the PDF at 300dpi, then create a 300x400 pixel output image, then take from the PDF the area 10x20+30+40 and place it in the target (300x400 pixel image) at 12,34. Then take another (and a third and fourth) chunk at different coordinates with different sizes and place them at different places.
I cannot seem to figure out how to do this in one go, and doing it in multiple runs always re-renders the PDF and takes awfully long. Is this even possible?
Here's an idea of how you can approach this. It uses the MPR or "Memory Program Register" that Fred suggested in the comments. It is basically a named chunk of memory that I write into at the start and which I recall later when I need it.
Here is a rather wonderful start image from the Prokudin-Gorskii collection:
The code resizes the image and saves a copy in the MPR. Then, takes a copy of the MPR, crops out a head, resizes it and composites the resized result onto the resized original at a different location and then repeats the process for another head.
magick Prokudin.png -resize 300x400\! -write MPR:orig \
\( MPR:orig -crop 50x50+180+84 -resize 140x140 \) -geometry +10+240 -compose src-over -composite \
\( MPR:orig -crop 40x40+154+184 \) -geometry +40+100 -compose src-over -composite \
result.png
If you have trouble understanding it, try running it with the second or third line omitted so it just does one head ;-)
Hopefully it covers all the aspects of your question and you can adapt it to your PDF.
I am trying to place a rotated image onto a blank canvas.
This is the command i am using:
convert "(" -size 1000x1000 xc:transparent ")" "(" "img.jpg" -virtual-pixel white -rotate -10.75 ")" -geometry +136+148 -composite "overlay.png" -geometry +0+0 -composite out.png
I would expect the image to appear at +136+148 rotated around its center. However, it appears to be rotated around its upper right corner instead.
I confirmed this in Photoshop:
This is the resulting image (using slightly different size but same parameters as my example command given here):
The 4 lines are the guides that mark the coordinates that define where the image sits. As you can see, the image is rotated -10.75 degrees. And the rotation center is the upper right corner.
Here i select the box at the correct coordinates in Photoshop:
And here i rotate it after setting the rotation point to the top right:
As you can see, the selection now matches the image as it was calculated by my convert command.
I have tried dealing with this for many hours. I tried switching to +distort and -distort and what not, but there i simply get either a cropped image or another wrongly positioned bounding box.
I don't know how to address this problem. What am i doing wrong? How can i tell -rotate to rotate my image around its center, not around the top right corner (why top right anyway?).
Thank you for your help!
The default gravity for offsetting is the northwest corner or top-left corner. The geometry offset you are using moves the top left corner of the padded rotated image after its background has been added and not the top left corner of the where the Input gets rotated. So I think that may be why you are not getting the expected result. ImageMagick -rotate does rotate about its center, but it fills the background out to make a complete rectangular image that is the bounding rectangle about the rotated image.
In ImageMagick, a better approach to what you did would be to use -gravity center and align the center of the rotated input image with the center of the transparent region in the overlay image.
Alternately, measure the 4 corners of your transparent region in the overlay and 4 corners of the input image and do a perspective or affine distortion to align the two.
Here is how to do it in bash unix syntax.
over1="122,186"
over2="466,118"
over3="510,345"
over4="166,411"
WxH=`convert -ping "Image.jpg" -format "%wx%h" info:`
ww=`echo "$WxH" | cut -dx -f1`
hh=`echo "$WxH" | cut -dx -f2`
ww=$((ww-1))
hh=$((hh-1))
in1="0,0"
in2="$ww,0"
in3="$ww,$hh"
in4="0,$hh"
convert overlay.png \
\( Image.jpg -virtual-pixel none +distort Perspective \
"$in1 $over1 $in2 $over2 $in3 $over3 $in4 $over4" \) \
-layers merge +repage \
out.png
See https://imagemagick.org/Usage/distorts/#perspective
Try using the offset geometry that aligns with the outer edges of your target area. That would be more along the red lines I've added here, not along the cyan lines in your example image.
Edited to add: For a method of finding the proper offset information to fill the hole and placing the image under the hole, see my other answer in this thread.
You can find the location of the cutout in your overlay image, then use that information to properly place your under image with a command like this...
convert overlay.png -background none \
\( +clone -alpha extract -trim \
-set option:offset +%[fx:page.x]+%[fx:page.y] +delete \) \
\( image.jpg -rotate -10.7 -set page %[offset] \) \
-set page %[fx:u.w]x%[fx:u.h] +swap -layers merge result.png
This makes use of the fact that the bounding box dimensions of the rotated input image are the same as the bounding box dimensions of the cutout of the transparent region in the overlay image.
That reads in the overlay, and inside parentheses it makes a clone of it, extracts the alpha channel, and trims the result to find the offset of the cutout. It saves the offset to a variable named "offset".
Then inside another set of parentheses it reads in the under image, rotates it the known -10.7 degrees, and uses that variable "offset" to set the paging offset on the rotated "image.jpg".
Then outside the parentheses it uses the width and height of the overlay to set the paging dimensions for the under image.
It finishes by swapping the order of the images to put the overlay on top, then merging the two layers to create the output.
Here is an alternate to GeeMack's excellent ImageMagick solution. This computes the center of the original input.jpg, and the center of the transparent region in the Overlay.png. Then it uses +distort SRT to translate and rotate the image before finally compositing with -layers merge.
convert Overlay.png \
\( +clone -alpha extract -trim -set option:center "%[fx:page.x+w/2],%[fx:page.y+h/2]" +delete \) \
\( Image.jpg -virtual-pixel none +distort SRT "%[fx:w/2],%[fx:h/2] 1 -10.7 %[center]" \) \
+swap -layers merge +repage result2.png
The second line is much line GeeMack's, but it computes the center of the transparent region's bounding box and saves that in the "center" argument and then deletes the trimmed image.
The third line computes the center of the Input.jpg image (before rotation). It then uses +distort SRT to translate from the input center, (scale=1) and rotate -10.7 and translate to the center of the transparent region's bounding box.
See https://imagemagick.org/Usage/distorts/#srt
I am trying to use ImageMagick to place one image (Poseidon_map01.jpg in my code below) in the top-left corner of another (zzOcean Backdrop.png) then crop the resulting image down to 1280x720.
This is the command I currently have:
".\ImageMagick-7.0.8-12-portable-Q16-x64\magick.exe" ".\Raw\zzOcean Backdrop.png" ".\Raw\Poseidon_map01.jpg" -gravity northwest -composite -crop 1280x720>! +repage ".\1280x720\Poseidon_map01.jpg"
The problem is that this command is cutting the composited image into 1280x720 pieces then saving all of those pieces with the names Poseidon_map01-1.jpg to Poseidon_map01-48.jpg. Poseidon_map01-1.jpg is the top-left corner of the composited image and this is the piece that I want to keep. I want to discard the rest of the composite. Does anyone know what I have to change in my command to make this happen? Thanks.
In Imagemagick crop, if you do not include the +X+Y offsets, it will crop as many pieces as it can given the size you specify. That is called tiled cropping. So use -crop WxH+X+Y>!
See https://imagemagick.org/Usage/crop/#crop
".\ImageMagick-7.0.8-12-portable-Q16-x64\magick.exe" ".\Raw\zzOcean Backdrop.png" ".\Raw\Poseidon_map01.jpg" -gravity northwest -composite -crop 1280x720+0+0>! +repage ".\1280x720\Poseidon_map01.jpg"
I am not a windows user and syntax may vary some. You may need to escape the > or ! with ^ on windows or put double quotes around the whole crop set of arguments. Keep that in mind, if this does not work. See https://imagemagick.org/Usage/windows/
The backgroud pic:
background
The final effect:
gif effect
How do I make the red heart move and cover the background text?
I have tried this:
Convert back.png ( -clone1 -gravity center -geometry +10+10 heart.png ) (-clone 1 *******)
This just moves the heart, but did not cover the text.
How do I make the red heart move and mask part of the background text?
With mask?
Here is one way using Imagemagick. First I need to crop out the heart shape from one of your animation frames, since you did not provide that.
Heart Image:
Background Image:
First, I create a new folder on my desktop called test and put both images into it.
Here is the code in (Bash) Unix syntax.
I start backwards from the right side towards the left of the background. The i indices are then reversed using j=(55-i) for later combining in alphabetic order. The jj computation adds a leading zero to the indices less than 10 so that all frames are listed in the test folder in alphabetic order.
For each frame, it extracts the alpha channel of the background and draws a black rectangle on the right side and then puts that result back into the alpha channel of the background image using -compose copy_opacity -composite. This effectively puts transparency where the pink letters are. Then I composite the heart image as the corresponding left edge of where I had drawn the black rectangle.
After the loop finishes, I gather all the frames from the test directory with names starting with tmp_ and create a gif animation that I write to the desktop.
x=564
for ((i=0; i<56; i++)); do
j=$((55-i))
jj=`printf "%02d\n" $j`
convert background.png \
\( -clone 0 -alpha extract -fill black -draw "rectangle $x,0 639,123" \) \
-alpha off -compose copy_opacity -composite \
heartshape.png -geometry +${x}+28 -compose over -composite tmp_$jj.gif
x=$((x-8))
done
convert -dispose background -delay 10 tmp_*.gif -loop 0 ../heart_animation.gif
Note that Windows Imagemagick and scripting syntax is different. If some kind Windows user wants to post the conversion, that would be great.