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Text Handling

Table of Contents

Annotating Images

pure text

Hard Shadow
http://www.imagemagick.org/Usage/fonts/#hard_shadow
Drawing the font twice with an offset, you can make a simple 'hard' shadow effect.

convert -size 320x100 xc:lightblue -font Candice -pointsize 72 \
        -fill black -draw "text 28,68 'Anthony'" \
        -fill white -draw "text 25,65 'Anthony'" \
        font_shadow.jpg

convert -size 320x100 xc:lightblue -font Candice -pointsize 72 \
        -fill black -annotate +28+68 'Anthony' \
        -fill white -annotate +25+65 'Anthony' \
        font_shadow1.jpg

Same effect.

Soft outlined font
http://www.imagemagick.org/Usage/fonts/#denser_soft_outline

convert -size 320x100 xc:lightblue -font Candice -pointsize 72 \
        -stroke black -strokewidth 8 -annotate +25+65 'Anthony' -blur 0x8 \
        -fill white   -stroke none   -annotate +25+65 'Anthony' \
        font_denser_soft_outline.jpg

annotating text onto images

Labeling on top of the Image
http://www.imagemagick.org/Usage/annotating/#anno_on

Outined Label

The simplist method is to draw the string with a outline to seperate the text from the image. However as the "-stroke" font setting adds thickness to a font both inward and outward, it is a good idea to draw the text twice.

convert logo: -gravity south \
        -stroke '#000C' -strokewidth 2 -annotate 0 'Faerie Dragon' \
        -stroke  none   -fill white    -annotate 0 'Faerie Dragon' \
        anno_outline.jpg

Image Fancy Label

As a final example I will overlay a text string created using a fancy soft outlined font to make sure it remains visible, but without creating a rectangular box for the annotation.

convert -size 100x25 xc:none -gravity center \
        -stroke black -strokewidth 2 -annotate 0 'Faerie Dragon' \
        -channel RGBA -blur 0x3 \
        -stroke none -fill white     -annotate 0 'Faerie Dragon' \
        +size  logo:  +swap \
        -gravity south -geometry +0-2  -composite  anno_fancy.jpg

Steps decomposition:

convert -size 100x25 xc:transparent -gravity center \
        -stroke black -strokewidth 2 -annotate 0 'Faerie Dragon' \
        -channel RGBA -blur 0x3 \
        -stroke none -fill white     -annotate 0 'Faerie Dragon' \
        anno_fancy.step1.jpg

convert anno_fancy.step1.jpg +size plasma:  +swap \
        -gravity south -geometry +0-2  -composite  anno_fancy.step2.jpg