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How to find the place where a photo was taken without third-party services

Posted by Alex On March 25, 2024

There are a huge number of online services that, using metadata (saved GPS information), can determine where a photo was taken and can show this place on the map. I wrote a couple of these services myself: https://suip.biz/?act=locatepicture https://w-e-b.site/?act=locatepicture Some people have concerns about how safe it is to send photos to third-party services. With an unstable and slow upload...

How to enable 10-bit color depth on Linux (and whether to enable 30-bit color)

Posted by Alex On August 31, 2023

Table of contents 1. Does my monitor (TV) use 10-bit color depth 2. Why enable 10-bit color support on Linux 3. How 10-bit color support is implemented in Windows 4. How 10-bit color support is implemented in Linux 5. How to know if my monitor (TV) supports 10-bit color depth 6. How to determine the number of colors (bits per...

How to identify content with 10-bit color depth. How to check what color depth is used in a photo and video

Posted by Alex On August 31, 2023

How can I tell if 10-bit depth is being used in a video or photo? How to determine color depth in an image First of all, if the photo is in JPG format, then it is safe to say that 10-bit color depth is not used in it, because this format simply does not support it. Examples of formats that...

What resolution and aspect ratio of photos to choose in the camera settings

Posted by Alex On June 17, 2023

Modern digital cameras and mobile phones allow you to take a photo at the touch of a button. This is very different from how they photographed thirty or forty years ago. All these focus, exposure, ISO settings are hidden in the Pro mode of the camera. And few people use these professional settings – and, by the way, others miss...

How to increase the color (saturation) of images, how to make a photo warmer or colder

Posted by Alex On September 11, 2022

You have probably noticed that other people's photographs can look very beautiful: incredible colors and shades, the landscape seems to be from a postcard. You might think that it's all about some very expensive camera, the outstanding talent of a photographer, or incomprehensible skills in photo processing. All this can take place, but in fact, you can turn an ordinary...

How to modify images on the Linux command line

Posted by Alex On August 17, 2022

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

Posted by Alex On August 16, 2022

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

Posted by Alex On August 16, 2022

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

Posted by Alex On August 16, 2022

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)

Posted by Alex On August 15, 2022

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...