Question

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How to draw a picture with text in the center of that via command-line?

rated 0 times [ 19] [ 0] / answers: 1 / hits: 7953 / 2 Years ago, tue, july 12, 2022, 1:22:16

I need to paint an image with text in the center via command-line to further put into the video. A simple yellow text on black background.

I tried FFmpeg way:

ffmpeg -loop 1 -r 1 -i b.png -b:v 1M -vf "scale=320:240, drawtext=fontfile=/usr/share/fonts/truetype/DejaVuSans.ttf: text='Test Text'" -vcodec mpeg4 -acodec aac preroll.mp4

Which gave me the following error:

[AVFilterGraph @ 0xf56020] No such filter: 'drawtext'

I tried to install ivtools and tried drawtool and idraw which are obviously for desktop environments.

How to create a simple image with text in Ubuntu programatically?

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truwom

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4 Years ago

answered 2 Years ago untroo · Accepted Answer

What about this command:

convert -background black -size 800x480 -fill "#ff0080"  -pointsize 72 -gravity center label:'Ask Ubuntu' output.png

enter image description here

By using above command you create an empty .png image which its background color is black.

-background color

set the background color.

the default background color (if none is specified or found in the image) is white.

The created image size will be 800x480(width[xheight]).

-size width[xheight][+offset]

set the width and height of the raw image.

-fill color

color to use when filling a graphic primitive.

This option accepts a color name, a hex color, or a numerical RGB, RGBA, HSL, HSLA, CMYK, or CMYKA specification. See Color Names for a description of how to properly specify the color argument.

For example,

 -fill blue

 -fill "#ff0080"

 -fill "rgb(255,0,128)"

Enclose the color specification in quotation marks to prevent the "#" or the parentheses from being interpreted by your shell.

To print a complete list of color names, use the -list color option.

-pointsize size

pointsize of the PostScript, OPTION1, or TrueType font.

-gravity type

sets the current gravity suggestion for various other settings and options.

Choices include: NorthWest, North, NorthEast, West, Center, East, SouthWest, South, SouthEast. Use -list gravity to get a complete list of -gravity settings available in your ImageMagick installation.

label:'your Text Here' write your text into image.png.

Also see more examples.

_{See full command-line options}