I have a batch of images that need a transparent background. I am able to create a black/white mask of the lighter and darker regions and want to use this mask to keep the pixels, which are white in the mask unchanged and set all pixel to transparent, which are black. The best outcome so far I got with
convert $FILE -rotate "-90<" $ROTATED
convert $ROTATED \
+dither \
-colors 2 \
-fill black \
-draw 'color 0,0 floodfill' \
-flop \
-draw 'color 0,0 floodfill' \
-flop \
-white-threshold 0 \
$MASK
convert $ROTATED -mask $MASK -compose copy-opacity -composite $OUT
But the last command just "ghosts" the whole image. How can I "cut out" the black pixels and keep the white pixels unchanged?
This is what I get so far.
You simply need to remove the "-mask" from your command line leaving your mask image (and add -alpha off). So the following works fine for me in ImageMagick 6.
Input:
convert star.png \
+dither \
-colors 2 \
-fill black \
-draw 'color 0,0 floodfill' \
-flop \
-draw 'color 0,0 floodfill' \
-flop \
-white-threshold 0 \
mask.png
convert star.png mask.png -alpha off -compose copy-opacity -composite out.png
Mask:
Result:
Download the result to see that the background is fully transparent.
If using Imagemagick 7, then change convert to magick
ADDITION
Here is one way to do that with MPR. Note the +swap.
convert star.png \
-write mpr:star \
+dither \
-colors 2 \
-fill black \
-draw 'color 0,0 floodfill' \
-flop \
-draw 'color 0,0 floodfill' \
-flop \
-white-threshold 0 \
mpr:star \
+swap \
-alpha off \
-compose copy-opacity -composite \
out.png
You can also do it with a clone and parentheses.
convert star.png \
\( +clone \
+dither \
-colors 2 \
-fill black \
-draw 'color 0,0 floodfill' \
-flop \
-draw 'color 0,0 floodfill' \
-flop \
-white-threshold 0 \) \
-alpha off \
-compose copy-opacity -composite \
out.png
I get the same result as above.
Related
I want to create image watermark like Shutterstock. I have tried but not able to replicate it. I tried with the following command. The issue is for me is i not able to add diagonal random text to image as Shutterstock does. I have tried many options with no luck.
infile="zoom.jpg"
ww=$(convert -ping "$infile" -format "%[fx:w-1]" info:)
hh=$(convert -ping "$infile" -format "%[fx:h-1]" info:)
convert "$infile" \
-fill "graya(100%,0.75)" \
-draw "line 0,0 $ww,$hh line $ww,0 0,$hh" -alpha off \
-fill "graya(50%,0.25)" \
tile_aqua_500_text_x_text.jpg
composite -dissolve 35 -gravity center logo.png tile_aqua_500_text_x_text.jpg tile_aqua_500_text_x_text.jpg
convert -background none -size 220x320 xc:none -font DejaVu-Sans-Bold -pointsize 30 \
-gravity North -draw "rotate -22 fill grey text 20,10 'knot9'" \
-gravity West -draw "rotate -27 fill grey text 5,15 '89898989'" \
miff:- |\
composite -dissolve 70 -tile - tile_aqua_500_text_x_text.jpg tile_aqua_500_text_x_text.jpg
width=`identify -format %w tile_aqua_500_text_x_text.jpg`; \
convert -background '#0008' -fill white -gravity center -size ${width}x30 -pointsize 10 -font DejaVu-Sans-Bold\
caption:"\nThis image is Copyrighted by Knot9 \n www.knot9.com | Image Id: 89898989\n" \
tile_aqua_500_text_x_text.jpg +swap -gravity south -composite tile_aqua_500_text_x_text.jpg
My Output is
Requirement is
In ImageMagick, you can do the following. Create a small text image on a transparent background using label:. Rotate it. Pad it to control the spacing. Tile it out to fill the image. Then composite the tiled out image over your background image.
Image:
convert lena.png \
\( -size 100x -background none -fill white -gravity center \
label:"watermark" -trim -rotate -30 \
-bordercolor none -border 10 \
-write mpr:wm +delete \
+clone -fill mpr:wm -draw 'color 0,0 reset' \) \
-compose over -composite \
lena_watermark.png
If using ImageMagick 7, then change convert to magick
See https://imagemagick.org/Usage/canvas/#tile_memory for tiling
I have a picture in which I need to create some text.
There are two regions where the text should appear. I was able to make these regions visible with the following code:
convert -verbose -pointsize 24 -font 'Arial' \
-region 200x60+90+60 -colorize 1% \
-fill white -draw "text 0,0 'Text 1'" \
+region \
-fill -region 275x35+10+10 -colorize 1% \
-fill black -draw "text 0,0 'another text'" \
+region \
${TEMPLATES_PATH}/base.bmp ${TEMPLATES_PATH}/result.bmp
But unfortunately I am not able to add text to this regions.
I tried several combinations of -background and -fill. My best guess is that the background of the region is now the same as the fill of the text. But I don't know how to change this.
convert -verbose -pointsize 24 -font 'Arial' \
-background black -region 200x60+90+60 \
-fill white -gravity center -draw "text 0,0 'Text 1'" \
+region \
-background white -region 275x35+10+10 \
-fill black -gravity center -draw "text 0,0 'another'" \
+region \
${TEMPLATES_PATH}/base.bmp ${TEMPLATES_PATH}/result.bmp
Results only in this:
While searching google, we see a lot of images with a text overlay effect that claim these images are coming from shutterstock.com.
This text effect is something like the following:
https://thumb7.shutterstock.com/display_pic_with_logo/4187557/559982074/stock-vector-few-little-houses-in-the-winter-forest-landscape-flat-style-vector-seamless-pattern-559982074.jpg
I am wondering how can I use ImageMagick cli to do something similar?
Thank you very much for any help.
Ideally, you would create a watermark mask with the text effect, and composite over the source image.
Step 1: Create text effect for reuse
convert -pointsize 64 -font GeorgiaB \
-fill black -stroke white -strokewidth 2 \
-background transparent -channel A -evaluate subtract 75% \
caption:"Hello World" mask.png
Step 2: Composite text effect over other images
convert -size 500x400 plasma: mask.png \
-gravity center -compose ATop -composite output.png
There's a lot more examples of text handling & effects, as well as composite techniques over # Anthony's Usage documentation.
There are many ways to add a white area at the bottom with text. This is one. If that is not what you want, then please explain further.
infile="tile_aqua_500.jpg"
ww=$(convert -ping "$infile" -format "%[fx:w-1]" info:)
hh=$(convert -ping "$infile" -format "%[fx:h-1]" info:)
convert "$infile" \
-fill "graya(100%,0.75)" \
-draw "line 0,0 $ww,$hh line $ww,0 0,$hh" -alpha off \
-fill "graya(50%,0.25)" \
-strokewidth 1 -stroke "graya(100%,0.25)" \
-gravity center -font arial -pointsize 48 \
-annotate +0+0 "Hello World" \
-undercolor white -gravity southeast -pointsize 24 \
-fill black -annotate +10+10 "yourdomain.com" \
tile_aqua_500_text_x_text.jpg
Hi fmw42, thank you :) How can I add a big X like shutterstock.com?
Draw two diagonal lines between the corners.
Input (tile_aqua_500.jpg) :
In Imagemagick 6 Unix system:
infile="tile_aqua_500.jpg"
ww=$(convert -ping "$infile" -format "%[fx:w-1]" info:)
hh=$(convert -ping "$infile" -format "%[fx:h-1]" info:)
convert "$infile" \
-fill "graya(100%,0.75)" \
-draw "line 0,0 $ww,$hh line $ww,0 0,$hh" -alpha off \
-fill "graya(50%,0.25)" \
-strokewidth 1 -stroke "graya(100%,0.25)" \
-gravity center -font arial -pointsize 48 \
-annotate +0+0 "Hello World" tile_aqua_500_text_x.jpg
In Imagemagick 7 Unix system:
infile="tile_aqua_500.jpg"
magick "$infile" \
-fill "graya(100%,0.75)" \
-draw "line 0,0 %[fx:w-1],%[fx:h-1] line %[fx:w-1],0 0,%[fx:h-1]" -alpha off \
-fill "graya(50%,0.25)" \
-strokewidth 1 -stroke "graya(100%,0.25)" \
-gravity center -font arial -pointsize 48 \
-annotate +0+0 "Hello World" tile_aqua_500_text_x.jpg
Result of either command:
Here is an alternate method to the excellent one from emcconville using Imagemagick -annotate to draw text directly on an image. I start with a small tillable image that I enlarge to 500x500 in size, before drawing the text with 50% transparency in mid gray and with a 50% transparent white outline. You can change the shades of gray and transparency as desired along with the font and pint-size. Change +0+0 to shift the locations of the text relative to the gravity center. Change -gravity to other compass locations to draw the text relative to those locations.
convert -size 500x500 tile:tile_aqua.jpg \
-fill "graya(50%,0.5)" -strokewidth 1 -stroke "graya(100%,0.5)" \
-gravity center -font arial -pointsize 64 \
-annotate +0+0 "Hello World" result.jpg
convert -size 500x500 tile:tile_aqua.jpg \
-fill "graya(50%,0.25)" -strokewidth 1 -stroke "graya(100%,0.25)" \
-gravity southeast -font arial -pointsize 48 \
-annotate +50+50 "Hello World" result1.jpg
Can anyone please help me to generate command for following image?
https://drive.google.com/file/d/0B2vZnIXu1nOweDI1aEJRYTYtSWM/view?pli=1
The command which i tried is as follows.
convert -size 5256.00x2799.00 xc:transparent -gravity Center -font MyriadProRegular.otf ^
-pointsize "83.00" -interword-spacing 30 -stroke none ( ( -size 1x29 xc:"#A89AD7-#9E87BD" ) ( -size 1x30 gradient:"#A581B1-#B16D92" ) ( -size 1x30 gradient:"#C57195-#D47396" ) -append -scale 89x89! -write mpr:grad ) -fill mpr:grad ^
-annotate +1238.00-1092.00 "[Child 5], &" ^ -delete 1 ^
final_result.png
Exact issue i am facing is to get gradient effect in font.
Not too sure what your exact difficulty is, but maybe this wil help you get there in simple steps, each of which can be debugged and improved individually...
First generate your text:
convert -font MyriadPro -pointsize 83 -background none label:"[Child 5], &" text.png
Now generate your blurred gradient:
convert -size 376x29 \
gradient:"#A89AD7-#9E87BD" \
gradient:"#A581B1-#B16D92" \
gradient:"#C57195-#D47396" \
-append -blur 0x10 gradient.png
Now overlay:
convert gradient.png text.png -compose copy-opacity -composite result.png
The blended curve your attempting is closer to interpolation than a stacked series of gradients.
Try using -spare-color, examples here, and experiment with blending each color-stop.
convert -size 100x100 xc: -sparse-color Inverse \
'0,0 #A89AD7 0,15 #9E87BD 0,33 #A581B1 0,66 #B16D92 0,85 #C57195 0,99 #D47396' \
preview.png
convert -size 400x100 xc: \( \
-size 1x100 xc: -sparse-color Inverse \
'0,0 #A89AD7 0,15 #9E87BD 0,33 #A581B1 0,66 #B16D92 0,85 #C57195 0,99 #D47396' \
-write mpr:grad +delete
\) \
-pointsize 63 -interword-spacing 30 \
-stroke none -fill mpr:grad \
-gravity Center -annotate 0 "[Child 5], &" \
final_result.png
I would like to be able to take 5 JPG images and process them with ImageMagick to create an effect showing the photos as a stack of Polaroid-like prints.
Assuming all photos are the same aspect ratio, they need to be resized to the same size, a 10px Polaroid-like border applied, then all slightly rotated and offset such that images below the top one are partially visible around the edges.
The rotation/offset doesn't need to be random as such - it could be hand-coded for each image in the stack if it is easier than doing it truly random?
Here is an example of the effect I am aiming for:
Can someone help with the correct parameters to use - I'm assuming we would want to use convert?
Edit: I already knew about the example contained on the ImageMagick page, but it doesn't specifically address my requirements - they clone the original image, they don't use multiple separate images. They also don't do a great job of explaining in each example exactly what every option does - they assume you already have spent hours (or days!) experimenting with the millions of options available. A bit difficult for someone who has never used the tool to master without a lot of work.
convert thumbnail.gif \
-bordercolor white -border 6 \
-bordercolor grey60 -border 1 \
-bordercolor none -background none \
\( -clone 0 -rotate `convert null: -format '%[fx:rand()*30-15]' info:` \) \
\( -clone 0 -rotate `convert null: -format '%[fx:rand()*30-15]' info:` \) \
\( -clone 0 -rotate `convert null: -format '%[fx:rand()*30-15]' info:` \) \
\( -clone 0 -rotate `convert null: -format '%[fx:rand()*30-15]' info:` \) \
-delete 0 -border 100x80 -gravity center \
-crop 200x160+0+0 +repage -flatten -trim +repage \
-background black \( +clone -shadow 60x4+4+4 \) +swap \
-background none -flatten \
poloroid_stack.png
... it would be great if someone could expand on this example and show me how to modify it to achieve my desired results as above.
Here is the command I found to give a pretty good result for what I needed - thanks to #Jim Lindstrom for putting me on the right track.
convert \
img-5.jpg -thumbnail 300x200 -bordercolor white -border 10 \
-bordercolor grey60 -border 1 -bordercolor none \
-background none -rotate -4 \
\
\( img-2.jpg -thumbnail 300x200 -bordercolor white -border 10 \
-bordercolor grey60 -border 1 -bordercolor none \
-background none -rotate 6 \
\) \
\
\( img-3.jpg -thumbnail 300x200 -bordercolor white -border 10 \
-bordercolor grey60 -border 1 -bordercolor none \
-background none -rotate -2 \
\) \
\
\( img-1.jpg -thumbnail 300x200 -bordercolor white -border 10 \
-bordercolor grey60 -border 1 -bordercolor none \
-background none -rotate -4 \
\) \
\
\( img-4.jpg -thumbnail 300x200 -bordercolor white -border 10 \
-bordercolor grey60 -border 1 -bordercolor none \
-background none -rotate 4 \
\) \
\
-border 100x80 -gravity center +repage -flatten -trim +repage \
-background black \( +clone -shadow 60x4+4+4 \) +swap -background none \
-flatten stack.png
Here is the output I get from my images using the above command:
It's not perfect yet, I have some more tweaks I'd like to do which I'll ask about in a separate question.
The docs for "convert" show almost exactly how. Search for "nice looking pile of photos" on http://www.imagemagick.org/Usage/thumbnails/#polaroid
Here's another way of doing it that makes, hopefully, clearer how one would sub in their own photos:
# create four images we want to use as our polaroid stack (I'm using the same one for all
# one, but you don't have to)
curl -O http://www.imagemagick.org/Usage/thumbnails/thumbnail.gif
cp thumbnail.gif thumbnail1.gif
cp thumbnail.gif thumbnail2.gif
cp thumbnail.gif thumbnail3.gif
cp thumbnail.gif thumbnail4.gif
rm thumbnail.gif
# You can easily see the recurring portion of this command. You could build
# it up programmatically and then execute it, for however many images you want.
# I've also simplified the example in their docs by hard-coding some rotation
# angles. Feel free to get fancy, or just hard code an array of them and keep
# grabbing the next one.
convert \
thumbnail1.gif \
-bordercolor white -border 6 \
-bordercolor grey60 -border 1 \
-bordercolor none -background none \
-rotate 20 \
-trim +repage \
\
\( \
thumbnail2.gif \
-bordercolor white -border 6 \
-bordercolor grey60 -border 1 \
-bordercolor none -background none \
-rotate -8 \
-trim +repage \
\) \
-gravity center \
-composite \
\
\( \
thumbnail3.gif \
-bordercolor white -border 6 \
-bordercolor grey60 -border 1 \
-bordercolor none -background none \
-rotate 3 \
-trim +repage \
\) \
-gravity center \
-composite \
\
\( \
thumbnail4.gif \
-bordercolor white -border 6 \
-bordercolor grey60 -border 1 \
-bordercolor none -background none \
-rotate -17 \
-trim +repage \
\) \
-gravity center \
-composite \
\
-crop 200x160+0+0 +repage -flatten -trim +repage \
-background black \( +clone -shadow 60x4+4+4 \) +swap \
-background none -flatten \
\
poloroid_stack.png
I use Simpon Hampel Code with some change in this :
How Margin Image with shadow in imagemagick?
please check it..