I'm trying to generate an image using Imagemagick to match a preview in the browser, but the text comes out blurry. Does anybody have any suggestions? Attached is an image with the Imagemagick one on top, and browser one on bottom, along with the IM code.
convert -density 288 -resize 25% -background white -fill black -strokewidth 0 -stroke white -font Rubik-Regular.ttf -pointsize 10 -gravity center label:'This is a TEST!' label_arial.gif
You might find it easier to start with caption which automatically sizes the text the best way to fill a given area. So, as your lettering is around 140x36 pixels, you would do:
convert -size 140x36 -gravity center caption:'This is a TEST!' label.gif
Related
I am using ImageMagick to add text to an image. I used to -gravity Center flag to put the text in the center of the image. But I think this is resulting in the text being center aligned too. I want the text at the center of the image but left aligned. Here is an example of what I'm trying to have:
This is the output I'm getting:
Current output
This is what I want:
This is my requirement
How do I accomplish this? This is my first time using ImageMagick. Please guide me.
Here is one way to do that in Imagemagick 6. I specify the background color, the font color (fill), the font and the pint-size and gravity west (left side). I use label: to create the two lines of text with a new line between them. This creates a text image of the size needed to hold the text. Then I pad the image all around that to the final size with the text image in its center using the same background color.
convert -background black -fill white -font ubuntu -pointsize 28 -gravity west label:"This is line 1 of text\nThis is line 2 of text" -gravity center -extent 400x300 result.png
See
https://imagemagick.org/Usage/text/
https://imagemagick.org/Usage/crop/#extent
ADDITION
If you want to put the text over an existing image, then you do something similar, but in place of the extent, we composite the text image over the background image.
The following is Unix syntax. For Window, remove the backslashes \ before the parentheses.
Input:
convert lena.png \( -background black -fill white -font ubuntu -pointsize 21 -gravity west label:"This is line 1 of text\nThis is line 2 of text" \) -gravity center -compose over -composite result.png
Result:
Or if you do not want the black background, use "none" for the color.
convert lena.png \( -background none -fill white -font ubuntu -pointsize 21 -gravity west label:"This is line 1 of text\nThis is line 2 of text" \) -gravity center -compose over -composite result2.png
I'm using ImageMagick ver 6.9.3-7 to write text over pictures. I've noticed that the same text with the same font looks much better in html canvas and I'm trying to make it looks the same.
This is how it looks in the html5 canvas:
and this is how it's looks with IM:
(enlarge the images to view the different)
This is how I'm creating the image with node.js:
gmFrame
.font("./assets/impact.ttf", fontSize)
.stroke("#000")
.strokeWidth(8)
.draw(`gravity center text ${position.x},${position.y} '${text}'`)
.stroke("transparent")
.fill("#fff")
.draw(`gravity center text ${position.x},${position.y} '${text}'`);
Is there something to do about it?
After investigating the only way to do it is with blur.
This is an example for how to add text with blur without writing another file
convert -quality 100 "DJ Pauly D.jpg" -resize 500x500 \( +clone -alpha transparent -pointsize 52 -font impact -stroke "#000" -strokewidth 8 -draw "gravity center text 0,0 'WRITE SOMETHING'" -stroke "transparent" -fill "#fff" -draw "gravity center text 0,0 'WRITE SOMETHING'" -blur 0x5 \) -composite r2.png
I'm after a very specific conversion result from Imagemagick, taking something like this:
And converting it into something like this (1140 pixels wide, 12px border around the top, left, and right of the original):
So far I'm using this code to convert it:
convert nike.jpg -colorspace RGB -density 72 -gravity west -background white -extent 1140x104 nike2.jpg
But I'm getting this very skewed result:
Any advice on how to get closer to my goal here? I guess I'm trying to chain Imagemagick commands here to reduce the size to 78px high, add a 12px border, then extend the background on the right to 1140px wide, and I'm not really sure how to chain commands in Imagemagick via Paperclip.
Solved perfectly:
convert nike.jpg -colorspace RGB -density 72 -resize 78 -gravity west -bordercolor white -border 12x12 -background white -extent 1140x104 nike3.jpg
I need to be able to apply watermark on an image, using either text or another image.
Getting it to work with an image was quite straight forward, using the following command:
gm composite -dissolve 15 -tile logo.png image.jpg wmark_tiled.jpg
Now, I also want to be able to use text for watermarking (in other cases). The only thing that I found close to it, is a command from ImageMagick tutorial which is the following :
convert -size 140x80 xc:none -fill grey -gravity NorthWest -draw "text 10,10 'copyrigh text'" -gravity SouthEast -draw "text 5,15 'copyright text'" miff:- | gm composite -tile - image.jpg copyrightImage.jpg
Although its not working in GM, and I would rather avoid using pipe as it causes some headaches managing it from Java.
What I thought I could do, is generate an image from a given text, and then use that image as logo.png is used on my first command. Although I cannot find how to generate an image out of text, all I find is putting text on top of an image.
Ideally I will generate a transparent image with the text, and from what I see modifying font/color etc should be quite flexible.
Any suggestions on how to achieve this, or any better solutions are welcome.
(I added imagemagick tag as the interfaces are often same/similar)
I'm not sure I fully understand your query, so apologies if I've misunderstood, but are you trying to create a transparent image, with some text in the corner? If so, would this not work?
convert -background transparent -fill grey -font Calibri -size 140x80 -pointsize 14 -gravity southeast label:'copyright text' output.png
Obviously adjusting the font, pointsize, output image name etc. That would create the following:
http://oi42.tinypic.com/14j1bvp.jpg
P.S. that was written for ImageMagick. I don't know how GM differs or whether it would still work.
To be able to get the watermark text into the same image I had to use the -annotate parameter.
So Moogle's code snippet would look like this in my case:
convert original_image.jpg -background transparent -fill grey -font Calibri -size 140x80 -pointsize 14 -gravity southeast -annotate +0+0 'copyright text' output.jpg
Getting started with ImageMagic and trying to find a way to do this... If an image is less than 50 pixels tall or 50 pixels wide, I'd like to place it (un-scaled) in the horizontal/vertical center of a new 50x50 pixel canvas on top of a white background - and save that as the new image. Anyone know if this is possible with ImageMagick? Thanks!
I used -extent to do this:
convert input.jpg -gravity center -background white -extent 50x50 output.jpg
I wanted to do the same, except shrink the image to 70% inside. I used this:
convert input.png -resize 70%x70% -gravity center -background transparent -extent 72x72 output.png
Not exactly what was requested but hopefully it will help someone ;).
I have once used this code to place an image in the center of a new canvas with white background. hope this will help you
convert -background white -gravity center your_image.jpg -extent 50x50 new_image.jpg
See cutting and bordering for a huge number of examples. Here's one simple way you might do it:
convert input.png -bordercolor Black -border 5x5 output.png
Of course, you'll need to calculate the size of the border to add (if any) based on the dimensions of the input image. Are you using an ImageMagick API, or just the command line tools?
I tried this:
convert test.jpg -resize 100x100 -background black -gravity center -extent 100x100 output.png
You can use single composition to do this. So it would look something like this:
convert -size 50x50 xc:white null: ( my_image.png -coalesce ) -gravity Center -layers Composite -layers Optimize output.png
To modify the source image you need to use mogrify:
mogrify -gravity center -background white -extent 50x50 source.jpg
If an image is less than 50 pixels tall or 50 pixels wide
In my case, the images were much larger than the destination canvas, and weren't square. So I resize them proportionally to fit inside. Example:
convert in.png -resize 46x46 -background none -gravity center -extent 50x50 out.png
The 46x46 limit ensures a 2 pixel margin minimum. Note that the above does not distort the image, e.g. a rectangle does not become a square.
I used background none for a transparent background, but you can choose a solid color instead.