Raster Graphics

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Raster Graphics

 

 
The smiley face in the top left corner is a raster image. When enlarged, individual pixels appear as squares. Enlarging in further, they can be analyzed, with their colors constructed by adding the values for red, green and blue.
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Wikipedia Raster graphics article wrote:

In computer graphics, a raster graphics or bitmap image is a dot matrix data structure that represents a generally rectangular grid of pixels (points of color), viewable via a monitor, paper, or other display medium. Raster images are stored in image files with varying formats.

A bitmap is a rectangular grid of pixels, with each pixel's color being specified by a number of bits.[1] A bitmap might be created for storage in the display's video memory[2] or as a device-independent bitmap file. [3] A raster is technically characterized by the width and height of the image in pixels and by the number of bits per pixel|bits per pixel (or color depth, which determines the number of colors it can represent).[4]


Introduction


References

  1. ↑ Types of Bitmaps Microsoft Docs. Microsoft. 29 March 2017. Retrieved 1 January 2019. "A bitmap is an array of bits that specify the color of each pixel in a rectangular array of pixels. The number of bits devoted to an individual pixel determines the number of colors that can be assigned to that pixel. For example, if each pixel is represented by 4 bits, then a given pixel can be assigned one of 16 different colors (2^4 = 16).
    ....
    There are many standard formats for saving bitmaps in disk files. GDI+ supports.... BMP.... GIF.... JPEG.... EXIF.... PNG.... TIFF"
  2. ↑ "Bitmap Class". Msdn.microsoft.com. Retrieved 30 November 2014.
  3. ↑ Types of Bitmaps Microsoft Docs. Microsoft. 29 March 2017. Retrieved 1 January 2019. "A bitmap is an array of bits that specify the color of each pixel in a rectangular array of pixels. The number of bits devoted to an individual pixel determines the number of colors that can be assigned to that pixel. For example, if each pixel is represented by 4 bits, then a given pixel can be assigned one of 16 different colors (2^4 = 16).
    ....
    There are many standard formats for saving bitmaps in disk files. GDI+ supports.... BMP.... GIF.... JPEG.... EXIF.... PNG.... TIFF"
  4. ↑ Types of Bitmaps Microsoft Docs. Microsoft. 29 March 2017. Retrieved 1 January 2019. "A bitmap is an array of bits that specify the color of each pixel in a rectangular array of pixels. The number of bits devoted to an individual pixel determines the number of colors that can be assigned to that pixel. For example, if each pixel is represented by 4 bits, then a given pixel can be assigned one of 16 different colors (2^4 = 16).
    ....
    There are many standard formats for saving bitmaps in disk files. GDI+ supports.... BMP.... GIF.... JPEG.... EXIF.... PNG.... TIFF"

Also See

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