Download AsciiArt Generator
Rapheal Charlton
This is a lightly currated collection of pictures converted to text with this ASCII art generator. When you use the Share button to share your ascii art pictures, check "Submit to Gallery" and you might find yours featured here, too!
Well, a few months ago, I stumbled across an article4 on Code Project by Daniel Fisher which talks about creating an application that does just this. According to Daniel, he was not able to find any C# application on the web that does image-to-ASCII conversions, so he decided to write his own, and hence his article. This is yet another article on the same topic, but with a slightly more enhanced ASCII Art generation. What I did was I searched through the web, found some web sites with image-to-ASCII conversion applications in PHP, combined all their ideas (including Daniel's), and implemented another (more enhanced) version of the ASCII Art generator in .NET.
Note: On some machines (especially servers), IIS doesn't actually use the ASPNET account to run ASP.NET pages. To find out exactly what account your IIS is using, just copy and paste the following code into Notepad and save it as who.aspx, then put the file into a web-folder under IIS and view it in Internet Explorer. The page will display the correct user account that ASP.NET is running under.
The above method is fast, but may not produce a high-quality resized image, and you don't have the option to select only a portion/section of the image to work with. The other alternative is to use System.Drawing.Graphics, as follows:
Now, at this stage, you may be wondering whether we can merge Step 3 and 4 together (assuming you use the second resizing method above), the short answer is: yes. The merged version will look like the following:
However, there is a catch in using the above merged method. To illustrate this, consider the case where you want to resize a HUGE image down to a small size and then convert it to ASCII Art. If you use the merged method, you will need to transform the entire image before the resizing takes place. This takes a lot of time. Therefore, it is better to resize it first before transforming it, hence the two separate methods given above.
Of course, you may argue that if somebody wants to resize a small image to a larger one and then transform it, the above situation will be reversed. But the fact is that this doesn't happen often in real life, so using the two separate methods will still be a better option.
Warning: Implementing the CreateColorMatrix() method involves a lot of mathematical details. If you find this boring, simply skip the details given below and go straight here for the source code of this method.
Notice that the saturation matrix has three special constants: lumR, lumG, and lumB. These represent the proportion of each RGB value that contributes to the luminance (brightness) value. In short, luminance for a pixel is calculated as follows:
From the above information, we can calculate the proper color matrix to transform a given image. To use all three matrices, we need to multiply them together into one single transformation matrix (using matrix multiplication). The result of multiplication is as follows:
If you want to see the full implementation of the above logic, just download the source files given above and have a look at the source codes. Note that the C# code presented in this article is a simplified version of the actual code; I have left out all that is irrelevant to the purpose of this article, such as error-handling and freeing resources.
Also, in my source files, I have put open curly braces at the end of a line, not at the beginning of a new line. Now, I'm not going to argue with you guys about which style is the best one that we should use. Personally, I use the end-of-line curly braces because I find it easier to read long lines of code. (Each start-of-line curly brace use up one line of code, so long lines of code will get even longer.) And no, I don't have a problem locating the start and end of a block since indentation is used.
This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.
Btrfs is a native Linux copy-on-write file system. It provides advanced features including error detection, fault tolerance, recovery, transparent compression, cheap snapshots, integrated volume management, and easier administration. Btrfs will be the file system used for new desktop installations.
Modern Intel-based systems provide sensors and methods to monitor and control temperature of their CPUs. The thermald daemon harnesses those sensors to monitor the CPU temperature. Based on the received data, thermald uses the best available method to keep the CPU in the right temperature zone.
Many invocations of the make utility in spec files that use the %_smp_mflags macro have been modified to use the %make_build macro. All make invocations that use the install target have been updated to use the %make_install macro. Any additional arguments to make that are not included in either %make_build and %make_install are preserved.
The device-mapper-multipath package requires an obsoleted service systemd-udev-settle.service in the default install of Fedora. This service waits a long time for detection of all devices. As a result, a system booting is significantly prolonged.
As multipath support is only necessary for installations in data centers or other enterprise setups, device-mapper-multipath is not needed. Therefore the Fedora workstation livecd will no longer contain device-mapper-multipath package.
The earlyoom service monitors system memory usage. If free memory falls below a set limit, earlyoom terminates an appropriate process to free up memory. As a result, the system does not become unresponsive for long periods of time in low-memory situations.
Starting with Fedora 33, a swap partition is not created by default at installation time. Instead, a zram device is created, and swap enabled on it during start-up. zram is a RAM drive that uses compression. See man zram-generator for a brief overview of its function.
The swap-on-zram feature can be disabled with sudo touch /etc/systemd/zram-generator.conf and reenabled by removing this file, and customized by editing it. See man zram-generator.conf for configuration information, including a description of the default configuration plus ASCII art.
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