Can't fit text to image with ImageMagick

问题

I need to fit my text to image. My image have different sizes so i can't set constant pointsize.

My command looks something like this

convert 
    -fill white
    -font Winter Calligraphy
    -size `${options.width}x${options.height}`
    label: KJHGFD
    test.gif

on output you can see cropped part on top of picture.

Output:

I have problem only with this fonts, other fonts works great.
I tried to add white border on top. Unfortunately, this only moved the damaged text to bottom.
I can't change area size.
Text must fill as much space as possible.
I need to use Winter Calligraphy font

回答1:

Here is a slightly kludgy way of getting the result you want. Here are the steps:

First, use caption: to get ImageMagick to tell you the pointsize it would use to fill your text box and extract that info
Create a canvas twice as wide and twice as tall as the one you really want and draw your text in the middle of that - it is bound to fit!
Now trim away the extraneous background around the text so you have the absolute minimum bounding box to contain the text
Resize the result to your desired size.

#!/bin/bash

# Width, height and text
w=600
h=150
text="KJHGFD"

# Get pointsize ImageMagick thinks is good
pointsize=$(convert -gravity center -background black -fill white -size ${w}x${h} \
    -font "Winter Calligraphy.ttf" caption:"$text" -format "%[caption:pointsize]" info:)

echo ImageMagick likes pointsize: $pointsize

# So draw text in that size on larger canvas, trim to bounds of letters and resize to desired size
wb=$((w*2))
hb=$((h*2))
convert -gravity center -fill white -size ${wb}x${hb} xc:black \
    -font "Winter Calligraphy.ttf" -pointsize $pointsize -annotate 0 "$text" \
    -trim +repage -resize ${w}x${h}\! result.png

回答2:

This works for me in ImageMagick 6.9.10.97 Q16 Mac OSX. I have added -background white -fill black -gravity center to your command.

convert -background white -fill black -font "/library/fonts/Winter Calligraphy.ttf" -size 569x196 -gravity center label:KJHGFD test.gif

来源：https://stackoverflow.com/questions/60527300/cant-fit-text-to-image-with-imagemagick

标签

graphics

fonts

ImageMagick