Computer Question: easy?

Question

what is bitmap image. and what is jpeg file. Is there a differance

Answer 1

bitmap is for icons and i'm not sure what jpeg is for

Answer 2

JPEG stands for Joint Photographic Experts Group (JPEG)



JPG files are a type of compressed bitmap file. This lossy compression technique reduces the size of an image by discarding details that are typically too insignificant for the human eye to detect.



Bitmap (Which comes from map of bits)



A bitmap file is one that is made up of pixels in a grid. It is a resolution dependent image, so it’s very difficult to increase the size of a bitmap graphic without a noticeable decrease in quality. When you try to make a bitmap image larger through an image editing software program such as Microsoft Paint or Adobe Photoshop, the computer uses a process called interpolation to “guess” what the additional pixels must look like. This may not be noticeable on your computer monitor, but printing the resized graphic almost always results in a blurry and distorted image.

Answer 3

Bitmap files (signified by .BMP extension) are the standard in basic image editing. Bitmaps are exactly as the name says, a map containing many bits of an image. The image displayed above is what a bitmap file would look like very close up. As you can see, it is just a large array of bits of an image, that when put together, looks like a picture. Since scanners and digital cameras take pictures in this same way (by capturing an group of pixels) most image editing programs will use BMP files for a true 1:1 copy of the file.



Benefits



High image quality

Easy to edit and change

No image loss through process

Downfalls

Not usually displayable on internet

Large file size







JPEG images are the most common image type that you will come across in your travels around the web. JPEG stands for "Joint Photographic Experts Group". What this means is the specific way that the image is compressed has been approved by the photograp hics expert group to be the best format for an internet-displayed photographic image. There are reasons why you should use JPEG compression and reasons not to, such as:





Benefits



Small image size

Viewable from the internet

Uses millions of colours

Perfect for most images

Downfalls

High compression loses quality

Every time a JPEG is saved, it loses more and more of the picture

Answer 4

A bitmap is a map of coloured bits mapped together to create an image. No t very good with complex images.



JPEG is usually associated with complex images with a lot of colour such as photos, paintings and the like. The jpeg format uses a compression algorithm to reduce the image complexity while minimizing the loss of detail and clarity. Compression of complex images is necessary in order to have your photo load on your screen with a descent amount of speed. An image of a photo without compression would take forever to load.

Answer 5

A bitmap is a completely uncompressed image format. Each pixel corresponds to one bit. The only thing you'll ever see it used for anymore is icons. JPEG is a compressed image format, the main format used for photographs.



GIFs are the other main format. They don't support the color depth of JPEGs, but they support transparency, and animation, which no other major format does (there is a version of PNG called APNG that supports animation, but it isn't widely supported. You're better off using JPEGs and some form of scripting if you want better quality animations, but I digress).



PNGs are compressed 24-bit images, like JPEGs, but they support transparency, like GIFs. SVG is an XML based format for vector images.



Edit: And here's Rick J's plagiarized uncited source: http://www2.cs.uregina.ca/~cs100/useful_links/imagetypes.html . If you're going to plagiarize, at least delete the extra lines so there aren't 5 blank lines between lines of text.

Answer 6

Both are image files. Bitmap is an uncompressed image, jpeg is compressed.

Answer 7

bitmap is for computer icons. In computing, JPEG (pronounced JAY-peg; IPA: /ˈdʒeɪpɛɡ/) is a commonly used method of compression for photographic images. Hope this helps you!

Answer 8

jpeg is just the most basic image file.