Update cheatsheets

convert

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# convert
+
+> Image conversion tool.
+> Part of ImageMagick.
+> More information: <https://imagemagick.org/script/convert.php>.
+
+- Convert an image from JPG to PNG:
+
+`convert {{path/to/input_image.jpg}} {{path/to/output_image.png}}`
+
+- Scale an image to 50% of its original size:
+
+`convert {{path/to/input_image.png}} -resize 50% {{path/to/output_image.png}}`
+
+- Scale an image keeping the original aspect ratio to a maximum dimension of 640x480:
+
+`convert {{path/to/input_image.png}} -resize 640x480 {{path/to/output_image.png}}`
+
+- Horizontally append images:
+
+`convert {{path/to/image1.png path/to/image2.png ...}} +append {{path/to/output_image.png}}`
+
+- Vertically append images:
+
+`convert {{path/to/image1.png path/to/image2.png ...}} -append {{path/to/output_image.png}}`
+
+- Create a GIF from a series of images with 100ms delay between them:
+
+`convert {{path/to/image1.png path/to/image2.png ...}} -delay {{10}} {{path/to/animation.gif}}`
+
+- Create an image with nothing but a solid red background:
+
+`convert -size {{800x600}} "xc:{{#ff0000}}" {{path/to/image.png}}`
+
+- Create a favicon from several images of different sizes:
+
+`convert {{path/to/image1.png path/to/image2.png ...}} {{path/to/favicon.ico}}`