Tag: convert

How to modify images on the Linux command line

ImageMagick is a powerful program and library for creating and modifying images on the command line. This section will cover the commands and options that you can use to imitate a drawing with paints, pencil, charcoal, make an image black and white; rotate the image to an arbitrary angle or display the image horizontally or vertically; resize the image; add...

How to add a caption to a large number of images

Bulk add captions to images The article “How to add text to images in ImageMagick” shows many examples of adding text with the ability to change all its properties using the “magick” program. The “magick” utility is part of the ImageMagick package. For details on installing ImageMagick, including which dependencies you need to install to support the maximum number of...

ImageMagick guide: installing, using, and troubleshooting

Table of contents 1. How to install ImageMagick with all dependencies to support the maximum number of formats 1.1 What is Image Magic 1.2 Installing ImageMagick on Linux 1.3 How to fix “magick: command not found” 1.4 ImageMagick: use magick or convert command? 1.5 Why do animate, compare, composite, conjure, convert, display, identify, import, mogrify, montage, stream commands no longer work in ImageMagick 2. The...

How to add text to images in ImageMagick

This post covers examples of using “magick” to add text to photos. The “magick” utility is part of the ImageMagick package. For details on installing ImageMagick, including which dependencies need to be installed to support the maximum number of formats, as well as a description of the command structure, examples of usage and all options, see the article: ImageMagick guide:...

How to composite and append images on the Linux command line (overlay and merge images)

The “magick” utility is part of the ImageMagick package. For details on installing ImageMagick, including which dependencies need to be installed to support the maximum number of formats, as well as a description of the command structure, examples of usage and all options, see the article: ImageMagick guide: installing, using, and troubleshooting. Let’s consider how to overlay an image on...

The structure of the magick command (ImageMagick)

ImageMagick Tools This post contains hints on how to use “magick”: selecting frames or areas of an image, types of options, output file numbering, color names, how to specify a transparent color. The “magick” utility is part of the ImageMagick package. For details on installing ImageMagick, including which dependencies need to be installed to support the maximum number of formats,...

How to convert a large number of images to another format

Bulk image conversion The article “How to convert images to any formats in Linux” shows how you can easily convert an image from one format to another using the magick program (hundreds of formats are supported). The “magick” utility is part of the ImageMagick package. For details on installing ImageMagick, including which dependencies need to be installed to support the...

How to reduce image size. Bulk photo scaling and resizing on the command line

How to reduce image size You can reduce the image size in several ways: 1. Select lossy image encoding format (JPEG) 2. Increase the level of image compression (for images compressed with loss of quality, this will lead to a deterioration in the appearance of the image, for images compressed without quality loss, this will mean longer processing of the...

How to check JPG quality level (SOLVED)

This post is about how to find out the quality of a JPG image, as well as other image properties, such as the number of unique colors used in the file, image depth, and other detailed information about JPG and other formats. How to know the quality of a JPG? Is it possible to determine the JPEG quality level? When...

How to convert images to any formats in Linux (SOLVED)

Universal image converter for Linux Linux has ImageMagick, which supports hundreds of image formats and can convert an image from any format to any other. The “convert” and “magick” utilities from the ImageMagick package do an excellent job of converting images (JPG and other formats). For details on installing ImageMagick, including which dependencies need to be installed to support the...
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