Bitmap (original) (raw)
- 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. (en)
- Bitmap adalah representasi dari citra grafis yang terdiri dari susunan titik yang tersimpan di memori komputer. Dikembangkan oleh Microsoft dan nilai setiap titik diawali oleh satu bit data untuk gambar hitam putih, atau lebih bagi gambar berwarna. Ukuran sebenarnya untuk n-bit (2n warna) bitmap dalam byte dapat dihitung: ukuran file BMP , di mana tinggi dan lebar dalam pixel. Kerapatan titik-titik tersebut dinamakan resolusi, yang menunjukkan seberapa tajam gambar ini ditampilkan, ditunjukkan dengan jumlah baris dan kolom, contohnya 1024x768. Untuk menampilkan citra bitmap pada monitor atau mencetaknya pada printer, komputer menterjemahkan bitmap ini menjadi pixel (pada layar) atau (pada printer). Beberapa format file bitmap yang populer adalah BMP, PCX dan TIFF. (in)
- ( 다른 뜻에 대해서는 비트맵 (동음이의) 문서를 참고하십시오.) 비트맵(영어: BMP file format, DIB file format 또는 bitmap, 문화어: 비트매프, 이진 숫자 배렬표)은 컴퓨터 분야에서 디지털 이미지를 저장하는 데 쓰이는 이미지 파일 포맷 또는 메모리 저장 방식의 한 형태이다. 보다 일반적으로는 래스터 그래픽스(점방식)라고 한다. 화면 상의 각 점들을 직교좌표계를 사용하여 화소 단위로 나타낸다. 그림을 확대하면 각 점이 그대로 커져 경계선 부분이 오돌도돌하게 보이는 계단 현상이 나타나며, 이를 좀 더 부드럽게 처리 하기 위한 알고리즘들이 있다. 가로 곱하기 세로 만큼의 픽셀 정보를 다 저장해야 하기 때문에 벡터 방식의 이미지나 텍스트 자료에 비해 상대적으로 용량이 크고 처리 속도가 느리다. 이를 개선하기 위해 JPEG, GIF, PNG 등의 다양한 파일 형식이 개발되었다. 이와 상반되는 방식의 그림 표현 방법에는 어떤 도형을 나타낼 것인지를 저장하는 벡터 방식이 있다. 비트맵을 두값본으로 부르기도 하는데, 두값본은 1997년 12월에 문화관광부에서 발행한 국어순화용어자료집에 전산기 순화 용어로 실렸으나 현재는 사용하지 않는 용어이다. (ko)
- Bitmapa, mapa bitowa – obraz cyfrowy w postaci pliku wykorzystującego rastrowy sposób reprezentacji komputerowej grafiki dwuwymiarowej polegający na określeniu położenia każdego piksela obrazu oraz przypisaniu mu wartości określającej kolor w danym trybie koloru. W węższym znaczeniu bitmapą bywa nazywany jedynie sam obraz pozbawiony ewentualnej kompresji i innych elementów dołączonych do pliku (metadanych), jak np. ścieżki, profile koloru, opis tekstowy pliku itp. (pl)
- Bitmap är en grupp av lagringsformat för digitala bilder. En bitmap består av ett rutnät av fyrkantiga bildelement, ofta kallade pixlar; för varje enskilt bildelement lagras information om dess färg enligt ett förutbestämt färgschema. En bitmap-fil innehåller även information om bildens storlek och färgschema. Fördelen med att lagra bilder som bitmaps är att ingen information går förlorad och bildinformationen är enkel att komma åt och därmed snabbare att bearbeta. Jämfört med ett komprimerat bildfilformat är en nackdel att bilderna kräver mycket mer lagringsutrymme. Jämfört med vektorgrafik, där bildelementen utgörs av grafiska objekt som linjer och cirklar, är en nackdel att bildernas blir dålig. I Microsoft Windows och några andra operativsystem har bitmap-bilder filändelsen .BMP. (sv)
- Bitmapa, mapa bitowa – obraz cyfrowy w postaci pliku wykorzystującego rastrowy sposób reprezentacji komputerowej grafiki dwuwymiarowej polegający na określeniu położenia każdego piksela obrazu oraz przypisaniu mu wartości określającej kolor w danym trybie koloru. W węższym znaczeniu bitmapą bywa nazywany jedynie sam obraz pozbawiony ewentualnej kompresji i innych elementów dołączonych do pliku (metadanych), jak np. ścieżki, profile koloru, opis tekstowy pliku itp. (pl)
- 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. (en)
- Bitmap adalah representasi dari citra grafis yang terdiri dari susunan titik yang tersimpan di memori komputer. Dikembangkan oleh Microsoft dan nilai setiap titik diawali oleh satu bit data untuk gambar hitam putih, atau lebih bagi gambar berwarna. Ukuran sebenarnya untuk n-bit (2n warna) bitmap dalam byte dapat dihitung: ukuran file BMP , di mana tinggi dan lebar dalam pixel. Kerapatan titik-titik tersebut dinamakan resolusi, yang menunjukkan seberapa tajam gambar ini ditampilkan, ditunjukkan dengan jumlah baris dan kolom, contohnya 1024x768. (in)
- ( 다른 뜻에 대해서는 비트맵 (동음이의) 문서를 참고하십시오.) 비트맵(영어: BMP file format, DIB file format 또는 bitmap, 문화어: 비트매프, 이진 숫자 배렬표)은 컴퓨터 분야에서 디지털 이미지를 저장하는 데 쓰이는 이미지 파일 포맷 또는 메모리 저장 방식의 한 형태이다. 보다 일반적으로는 래스터 그래픽스(점방식)라고 한다. 화면 상의 각 점들을 직교좌표계를 사용하여 화소 단위로 나타낸다. 그림을 확대하면 각 점이 그대로 커져 경계선 부분이 오돌도돌하게 보이는 계단 현상이 나타나며, 이를 좀 더 부드럽게 처리 하기 위한 알고리즘들이 있다. 가로 곱하기 세로 만큼의 픽셀 정보를 다 저장해야 하기 때문에 벡터 방식의 이미지나 텍스트 자료에 비해 상대적으로 용량이 크고 처리 속도가 느리다. 이를 개선하기 위해 JPEG, GIF, PNG 등의 다양한 파일 형식이 개발되었다. 이와 상반되는 방식의 그림 표현 방법에는 어떤 도형을 나타낼 것인지를 저장하는 벡터 방식이 있다. (ko)
- Bitmap är en grupp av lagringsformat för digitala bilder. En bitmap består av ett rutnät av fyrkantiga bildelement, ofta kallade pixlar; för varje enskilt bildelement lagras information om dess färg enligt ett förutbestämt färgschema. En bitmap-fil innehåller även information om bildens storlek och färgschema. I Microsoft Windows och några andra operativsystem har bitmap-bilder filändelsen .BMP. (sv)
- freebase:Bitmap
- http://d-nb.info/gnd/4381789-0
- wikidata:Bitmap
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- http://hi.dbpedia.org/resource/बिट_मानचित्र
- dbpedia-id:Bitmap
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- http://lv.dbpedia.org/resource/Bitkarte
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- https://global.dbpedia.org/id/F55F
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