bit maanachitr

chitr:Smiley with its enlarged bitmap Dec 2005.jpg
bada kiya hua ek bitmaip chitr, kaale rang vaale saaainche 1 va safed saaainche 0 se milkar bana bit maanachitr.

computer mein soochanaaon ko rakhane ke liye aakannon ko 0 aur 1 ke roop mein jise bit bhi kehte hain, mein rakha jaata hai. kisi soochana ko darshaane ke liye 0 aur 1 ki jo dviaayaami saarani ya maanachitr taiyaar hota hai use hi bitmaip ya bit aire kehte hai.[1]

inkaskep vektar chitr se chhota kiya hua ek bitmaip chitr.

computer graafiks mein jab yeh maanachitr ek aayat hota hai tab bitmaip banaakar kisi doaayaami chitr ko rakha jaata hai. doaayaami chitr vah hote hain jismein har ek piksel kaali ya safed ya fir kinheen do rangon se bhari hoti hai.

(pixmap) piksamaip shabd piksalon ke maanachitr ke liye istemaal kiya jaata hai. yahaaain har piksel ek se jyaada rang rakh sakta hai. is tarah se ismein har piksel ke liye ek se jyaada bit istemaal hote hain, jabki bitmaip mein ek piksel ke liye ek hi bit istemaal hota hai. kuchh sandarbhon mein bitmaip ko ek bit prati piksel va piksamaip ko kai bit prati piksel ke liye istemaal kiya jaata hai.[2][3]

bitmaip ek tarah ki smruti roop ya chitr sanchika faurmet hai jise chitron ko rakhane ke liye upayog kiya jaata hai. bitmaip shabd computer prograaming bhaasha ki shabdaavali se nikla hai jisk matlab hota hai biton ka maanachitr (maip of bits).

anukram

piksel bhandaaran

In typical uncompressed bitmaps, image pixels are generally stored with a color depth of 1, 4, 8, 16, 24, 32, 48, or 64 bits per pixel. Pixels of 8 bits and fewer can represent either grayscale or indexed color. An alpha channel (for transparency) may be stored in a separate bitmap, where it is similar to a grayscale bitmap, or in a fourth channel that, for example, converts 24-bit images to 32 bits per pixel.

The bits representing the bitmap pixels may be packed or unpacked (spaced out to byte or word boundaries), depending on the format or device requirements. Depending on the color depth, a pixel in the picture will occupy at least n/8 bytes, where n is the bit depth.

For an uncompressed, packed within rows, bitmap, such as is stored in Microsoft DIB or BMP file format, or in uncompressed TIFF format, a lower bound on storage size for a n-bit-per-pixel (2n colors) bitmap, in bytes, can be calculated as:

size = width • height • n/8, where height and width are given in pixels.

In the formula above, header size and color palette size, if any, are not included. Due to effects of row padding to align each row start to a storage unit boundary such as a word, additional bytes may be needed.

beeemapi file faurmait

rangeen bit maanachitron ko vibhinn upakaranon va sauftaveyaron ke beech baaaintane va upayog karne ke liye Microsoft ne vibhinn rango va unki gaharaaiyon ko pradarshit karne ke liye ek vishesh pradarshan paddati paribhaashit ki hai. unhonne ise upakaran mukt bitmaip (device-independent bitmap) ka naam diya hai aur in sanchikaaon ke faurmet ko DIB ya BMP ka naam diya gaya hai. Microsoft sahayog website ke anusaar [4]

ek upakaran mukt bitmaip (DIB) chitron ko sahejane ke liye aisa file faurmet hai jise vibhinn rango mein upakaran mukt chitron ko paribhaashit karne ke liye upayog kiya jaata hai. DIB ka pramukh kaarya kisi bitmaip ko ek se doosare upakaran mein sthaanataran ke laayak banaana hota hai. iseeliye ise upakaran mukt ya divaais indipeindent kehte hain. DIB ek baahari faurmet hai jabki upakaran par nirbhar bitmaip computer mein software dvaara banaae hue ek bit maanachitr vastu ki tarah rahata hai. use us computer va software par hi upayog kiya ja sakta hai. DIB ko mukhyat: beeemapi sanchikaaon ke roop mein sthaanaantarit kiya jaata hai.

yahaaain, upakaran-mukt "device independent" se taatparya file faurmet ya file bhandaaran prakriya se hai.

anya bitmaip file faurmait

The X Window System uses a similar XBM format for black-and-white images, and XPM (pixelmap) for color images. Numerous other uncompressed bitmap file formats are in use, though most not widely.[5] For most purposes standardized compressed bitmap files such as GIF, PNG, TIFF, and JPEG are used; lossless compression in particular provides the same information as a bitmap in a smaller file size.[6] TIFF and JPEG have various options. JPEG is usually lossy compression. TIFF is usually either uncompressed, or lossless Lempel-Ziv-Welch compressed like GIF. PNG uses deflate lossless compression, another Lempel-Ziv variant.

There are also a variety of "raw" image files, which store raw bitmaps with no other information; such raw files are just bitmaps in files, often with no header or size information (they are distinct from photographic raw image formats, which store raw unprocessed sensor data in a structured container such as TIFF format along with extensive image metadata).

inhein bhi dekhein

  • raistar graafiks
  • raistar scan

sandarbh

  1. vaingi beel. "bit map". vebopeediya. http://www.webopedia.com/TERM/B/bit_map.html. abhigman tithi: 6 August 2015.
  2. James di. fole (1995). Computer Graphics: Principles and Practice. aideesan vesli profesanal. pp. 13. aai॰aऍsa॰abee॰aऍna॰ 0-201-84840-6. http://books.google.com/books?id=A4k29b0BdVMC&pg=PA13&dq=bitmap+pixmap+%22short+for+pixel+map%22&as_brr=3&ei=JyjwRpvsFYHSpgLN0LyeDA&sig=fcHA65Hg-o819ClX-ueoRJJTk-Q. "The term bitmap, strictly speaking, applies only to 1-bit-per-pixel bilevel systems; for multiple-bit-per-pixel systems, we use the more general term pixmap (short for pixel map)."
  3. vi. ke. pachaghane (2005). Comprehensive Computer Graphics: Including C++. lakshmi pablikeshans. pp. 93. aai॰aऍsa॰abee॰aऍna॰ 81-7008-185-8. http://books.google.com/books?id=xIKK9RcSTR4C&pg=PA93&dq=bitmap+pixmap+one-bit+date:2004-2007&as_brr=0&ei=PkXwRpD0H4bs7gLC9-jrCQ&sig=ebuyyYGL6FKBWHDjV62IR9MEJA8.
  4. "More Fun with MFC: DIBs, Palettes, Subclassing, and a Gamut of Reusable Goodies". Microsoft help end support. 2005-02-11. http://www.microsoft.com/msj/0197/mfcp1/mfcp1.aspx. abhigman tithi: 6 August 2015.
  5. "List of bitmap file types". Search File-Extensions.org. http://www.file-extensions.org/filetype/extensions/name/Bitmap+image/.
  6. J. Thomas, A. Jones (2006). Communicating Science Effectively: a practical handbook for integrating visual elements. IWA Publishing. aai॰aऍsa॰abee॰aऍna॰ 1-84339-125-2. http://books.google.com/books?id=xrgkojGgwDYC&pg=PA26&dq=gif+png+tiff+jpeg+common&ei=9AP2RrD6GajupQLft8HOAQ&sig=mcbmyJU0LRNc-kTEPTme0708lvY.