In computing, a bitmap is a mapping from some domain (for example, a range of integers) to bits. It is also called a bit array or bitmap index. As a noun, the term "bitmap" is very often used to refer to a particular bitmapping application: the pix-map, which refers to a map of pixels, where each one may store more than two colors, thus using more than one bit per pixel. In such a case, the domain in question is the array of pixels which constitute a digital graphic output device (a screen or monitor). In some contexts, the term bitmap implies one bit per pixel, whereas pixmap is used for images with multiple bits per pixel. A bitmap is a type of memory organization or image file format used to store digital images. The term bitmap comes from the computer programming terminology, meaning just a map of bits, a spatially mapped array of bits. Now, along with pixmap, it commonly refers to the similar concept of a spatially mapped array of pixels. Raster images in general may be referred to as bitmaps or pixmaps, whether synthetic or photographic, in files or memory. Many graphical user interfaces use bitmaps in their built-in graphics subsystems; for example, the Microsoft Windows and OS/2 platforms' GDI subsystem, where the specific format used is the Windows and OS/2 bitmap file format, usually named with the file extension of .BMP (or .DIB for device-independent bitmap). Besides BMP, other file formats that store literal bitmaps include InterLeaved Bitmap (ILBM), Portable Bitmap (PBM), X Bitmap (XBM), and Wireless Application Protocol Bitmap (WBMP). Similarly, most other image file formats, such as JPEG, TIFF, PNG, and GIF, also store bitmap images (as opposed to vector graphics), but they are not usually referred to as bitmaps, since they use compressed formats internally. (Wikipedia).
This is the first in a sequence of videos about images. It describes the fundamental principles of a bitmap image, namely, that a bitmap is a rectangular grid of picture elements known as pixels. It explains how pixel density, which is known as the image resolution, and the number of bit
From playlist Images
IAML2.12: How to represent images
From playlist Thinking about Data
If you are interested in learning more about this topic, please visit http://www.gcflearnfree.org/ to view the entire tutorial on our website. It includes instructional text, informational graphics, examples, and even interactives for you to practice and apply what you've learned.
From playlist Photoshop
True Colour and Indexed Colour Bitmaps
This is the second in a sequence of videos about images. It begins by reviewing the impact of resolution (pixel density) and colour depth (the number of bits used to encoded the colour of each pixel) on the quality of an image. It goes on the explain that a true colour 24 bit RGB bitmap
From playlist Images
Coding Math: Episode 21 - Bitmap Collision Detection
Some weeks back I promised to show you how to do collision detection with bitmaps in canvas. Here you go! Support Coding Math: http://patreon.com/codingmath Source Code: http://github.com/bit101/codingmath
From playlist Episodes
Why I love 4294967296? MegaFavNumbers.
Bitonic sorter: https://en.wikipedia.org/wiki/Bitonic_sorter Fast Fourier Transform https://en.wikipedia.org/wiki/Fast_Fourier_transform#:~:text=A%20fast%20Fourier%20transform%20(FFT,frequency%20domain%20and%20vice%20versa. #MegaFavNumbers I know that this video is horrible, but an invite
From playlist MegaFavNumbers
If you are interested in learning more about this topic, please visit http://www.gcflearnfree.org/ to view the entire tutorial on our website. It includes instructional text, informational graphics, examples, and even interactives for you to practice and apply what you've learned.
From playlist Bitcoin & Cryptocurrency
In this video, we simplify a logarithm.
From playlist Logs - Worked Examples
If you are interested in learning more about this topic, please visit http://www.gcflearnfree.org/ to view the entire tutorial on our website. It includes instructional text, informational graphics, examples, and even interactives for you to practice and apply what you've learned.
From playlist Photoshop
Asteroids part 13 - It worked first try!? (kind of)
It's time to create another project using the BBECS crate! We'll be making the arcade game of asteroids! links * Code - [https://github.com/brooks-builds/](https://github.com/brooks-builds/) * BBECS - [https://crates.io/crates/bbecs](https://crates.io/crates/bbecs) *
From playlist asteroids
Learn about Android Graphics & Animations from Google's Android UI Toolkit team
Learn how to create awesome visuals and animations from Android UI Toolkit engineers, Romain Guy and Chet Haase. In this presentation Romain and Chet will drill down into architecture, graphics and animations. You'll also get a look at some of the new Android API's coming in these areas.
From playlist Google Lectures
From playlist CS50 Walkthroughs 2012
RubyConf 2022: Data indexing with RGB (Ruby, Graphs and Bitmaps) by Benjamin Lewis
In this talk, we will go on a journey through Zappi’s data history and how we are using Ruby, a graph database, and a bitmap store to build a unique data engine. A journey that starts with the problem of a disconnected data set and serialised data frames, and ends with the solution of an i
From playlist RubyConf 2022: Mini and Houston
Asteroids part 11 - Starting to create a BitMap
It's time to create another project using the BBECS crate! We'll be making the arcade game of asteroids! links * Code - [https://github.com/brooks-builds/](https://github.com/brooks-builds/) * BBECS - [https://crates.io/crates/bbecs](https://crates.io/crates/bbecs) *
From playlist asteroids
Inkscape Trace Bitmap Tutorial: How to Convert PNG Image or Jpeg to Vector + Remove Background
Inkscape Trace Bitmap Tutorial: How to Convert Jpeg to Vector + Remove Background | Astronaut Mural Inkscape step-by-step beginner, intermediate tutorial on how to create a vector image from a jpeg, PNG, raster image in Inkscape using the Trace Bitmap tool. Follow along in this Inkscape s
From playlist Inkscape Tutorials: Basic Tools and Techniques for Beginners
Cheat Sheet and Filters Here : http://goo.gl/ehNnQ3 Best Inkscape Book : http://goo.gl/mTAm7P In this video I cover linking vs. embedding images, Patterns, Clipping, Masking, Make a Bitmap Copy, Tracing and more.
From playlist Inkscape Video Tutorial
Everything You Need to Know About JPEG - Episode 3: Bitmap Output
In this series you will learn all of the in-depth details of the complex and sophisticated JPEG image compression format In this episode, we learn how to write all of the pixel data in the MCUs to a bitmap file Jump into the playlist here: https://www.youtube.com/watch?v=ldsdJqGr9uc&list
From playlist Fourier
Mathigon (found at mathigon.org) is one of my new favorite apps. Check it out to see what it can do!
From playlist Mathigon Demos and Ideas
CS105: Introduction to Computers | 2021 | Lecture 2.3 Digital Images: Bitmaps vs. Objects
Patrick Young Computer Science, PhD This course is a survey of Internet technology and the basics of computer hardware. You will learn what computers are and how they work and gain practical experience in the development of websites and an introduction to programming. To follow along wi
From playlist Stanford CS105 - Introduction to Computers Full Course