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What does bitmap mean?

Updated: 12/10/2022
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A bitmap is a series of bits which represents a rasterized graphic image, each pixel being represented as a group of bits.

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A bitmap for an electronic image is a specification of the space occupied by the image and information about the colour of each dot (pixel) in it.

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Q: What does bitmap mean?
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Height and width of a bitmap image?

A bitmap image doesn't necessarily have a specified height and width. It can be changed by pressing (Ctrl+E), or the long way; Image > Attributes


How are Flash images different from bitmap images?

swf is vector format, that means image can be re sized without loss of quality, but if you place bitmap or raster image in swf file when resized (enlarged) image will appear blurry.


What is vector all about?

Vector describes both speed and direction. In graphic programs, a vector graphic scales smoothly (more so than a bitmap image).


How does data elements are packed in ISO 8583 message?

== == Hi Koso I am excited work in ISO ...please can you tel me, if you have any ISO manual for VISA, hypercom, MC do you mean how is data formatted or do you mean how do you specifically use "packed" data? e.g. a financial transaction request, let's suppose it has ascii format and the bitmap is binary, I'll represent binary data with 'b' as I can't (or won't) go through the trouble of making an actual binary bitmap: 0200bbbbbbbb165500007891111111003000000000000100 Now the above shows only the start of the message and not a real bitmap, but the format should be clear: the first 4 bytes are the message type, in this case "0200", financial transaction request (a response would be 0210). The next 8 bytes are the binary bitmap (64 bits) that will, if done correctly, show which bits (data elements) are present i.e. have value "1" and not "0". Now in this case I show you 3 following data elements which are present in most requests: cardnumber (2), processing code (3) and transaction amount (4). Data element 2 is cardnumber and has variable length where the length subfield is 2 positions - here you can see it has value "16", which means the next 16 bytes are the cardnumber. Then comes data element 3 which is fixed length 6 positions for the processing code, in this case "003000" which means purchase (first 2 positions "00") using a credit card (positions 3-4 "30"). Then comes data element 4 which is a 12 position fixed length numeric field for the transaction amount, in this case 1 (of whatever currency) because 000000000100 translates to 1.00 currency unit. The currency will be determined in the data element 49 later in the stream, e.g. 840 would be USD. It's like this: the ISO-message roughly exists of 3 things: - message type (MTI) - bitmap(s) - data (elements) The message type can be packed or unpacked and if unpacked, it can be either EBCDIC or ASCII. If it's packed (like with "Hypercom" iso or Visa ISO). each byte contains 2 numbers, if you look at the hex value, which you have to "nibble" to get the expanded value. So if your message type (and other numerical data elements) is packed, the message type is your first 2 bytes instead of your first 4 bytes, after which comes your bitmap. Your bitmap can be either single, double or triple and also can be either hex or binary. A normal Point of Sale message contains a single binary bitmap, i.e. 8 bytes with 64 bits turned on or off. After you figure out which bits are on or off, you start parsing the data elements based on the bitmap data element definition, the fact if they're packed or not (if numeric), they are variable length and if they're alpha numeric, if they're ASCII or EBCDIC. It's complicated but once you make one good routine with your data elements, format all defined in tables, you'll breeze through any type of ISO. I'm programming on a daily basis with Hypercom ISO, Visa, Mastercard, Discover and another 3rd party vendor and they're all a bit different ... Regards, Koos Bezemer Curacao


How do you change a bitmap image to a JPEG image?

if u hav windows, right click on the image and click on open with then, click on paintOn paint, click on file, save as, and sava the image in jpeg format on save as type, which is usually below the file name.

Related questions

How are bitmap graphics constructed?

a bitmap is made up of individual squares


When was The Bitmap Brothers created?

The Bitmap Brothers was created in 1987.


What are the disadvantages of bitmap graphics?

You can not enlarge bitmap images without losing quality and bitmap images are larger in size then vector.


What is bitmap in Photoshop?

A Bitmap is a file you can save pictures as like JPEG or PNG, in photoshop it means save the picture as a bitmap


What is a btmp file?

btmp is short for bitmap. Bitmap files are pictures.


Is GIMP vector or bitmap?

Not sure Vector i think


Are JPEG files bigger than bitmap files?

Jpeg files are smaller than bitmap files, though bitmap files are much better quality.


When you save drawing using paint its automatically stored as a?

its saved as a bitmap file.


What is another term for Raster Graphics?

A bitmap graphic is also known as a raster image.


What software do you use to make bitmap images?

You can make a bitmap in paint. When you save your image just choose .bmp as the file extension.


Iso 8583 header and BitMap Details?

Your question is not clear, anyway ISO8583 bitmap indicates the fields or data elements which are being sent with the current ISO8583 message. An ISO8583 message can have up to three bitmaps, one is required (primary bitmap). each bitmap consists of 64 bits (8 bytes), means that it can tell about 64 fields - bit value is 1 for presence and 0 for absence of the corresponding field number. 1st bit of primary bitmap represent secondary bitmap's presence, similarly, presence of tertiary bitmap is represented by 1st bit of secondary bitmap. Each bitmap can be represented by 8 (1-byte) characters or 16 hex characters.


Is Adobe Photo shop a raster or bitmap editor?

Photoshop is a raster image editor. Raster and Bitmap are two words for the same thing, so Photoshop is raster or Bitmap image editor, somewhere you will see raster, somewhere bitmap as explanation but it is basically same thing. Photoshop is primarily designed to work with bitmap images which are raster images in other words.