0
Any type of compression will ideally reduce the size of an image. There are two types of compression which describe how they affect images:
"Lossy" compression
This type of compression reduces the size of the image by removing some data from it. This generally cause, effect the quality of the image, which mean it will reduce your image quality.
"Lossless" compression
This type of compression reduces the size of the image by changing the way in which the data is stored. Therefore this type of compression will make no changes in your image.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoThere are two types of compression:
- loss less (like Bitmaps or GIF)
- lossy (like JPEG)
The loss less compression schemes are either deidicated to image representation like RLE in bitmaps or generic compression methods like LWZ - same used in zip.
The lossy compression is dedicated to the image representation and can achieve bigger comrpession ratios with little or no visible loss of the image quality (sharpness in most of the cases).
Add your answer:
Earn +20 pts
What is refrigeration effect?
When you plot a system on a mollier diagram it the point between the pressure drop and the bottom of the compression line, measured in BTU/LB. Also known as the Net Refrigeration Effect.
What are the advantages of compression?
Compressing files or images enables you to (sometimes dramatically) decrease the memory space that file will take up. Without going into to too much detail, it works by 'approximating' the information in the file, thereby lowering the detail and filespace. However, compression also reduces the quality of the file, possibly corrupting it if it is compressed too much!
FAT32 supports compression of individual files and folders?
FAT32 does not support compression of filesor folders
How are bitmap images stored on a computer system?
Bitmap images, also called raster images -- are a collection of colored squares/dots on a grid each chunk of this grid and each one is called a pixel -- and the amount of pixels is the resolution of the image. Each pixel may have one of 1,658,135 different color values (255 channels red, 255 green, 255 blue). In the bitmap file format (.bmp) each pixel has its information saved individually with no chunking, shortcuts or other methods applied to it to reduce its filesize. Modern raster formats (e.g. JPG, GIF, PNG) are essentially bitmap images that have compression applied to it in order to reduce filesize and sometimes implement extra features like transparency (also known as alpha). The concept of image compression is a beyond the scope of this question.
What type of compression substitutes special characters for repeating patterns?
Lossless compression is the correct answer :)
Can low compression affect timing?
No. Low compression does not effect timing but timing can affect compression.
A major characteristic of poetry is the compression of images into the fewest number of words?
is true .
What is tension and compression?
Tension and compression takes place when an object has a force on another object. The tension is when the force is causing a pulling effect on part of the object. The compression is when the force is causing a contracting effect on part of the object.
What are the advantages of Huffman coding?
Algorithm is easy to implement Produce a lossless compression of images
What compression formats are used for image?
Compression methods are used for images compression and most common compressions are JPEG which is lossy (you can lost some details or quality of image), LZW which is lossless, RLE and ZIP also lossless compressions.
What has the author R J Clarke written?
R. J. Clarke has written: 'Coffee' 'Digital compression of still images and video' -- subject(s): Coding theory, Video compression, Image compression, Digital video
Why was the crack an effect of tension and not compression stress?
A crack is caused by tension not compression because tension pulls matter apart while compression pushes matter together
Why do JPEG picture files always blur when you save them?
The lossy compression in the JPEG files generates a blur effect near the edges in the image. The stronger the compression, the more visible the blur effect.
When cycling what forces can effect you?
tension , compression and friction
What is the advantage of jpeg?
JPEG images (jpeg, jpg) use compression formats to reduce the data file size for digital images. While this causes a loss of image quality, it enables images to be more efficiently stored and transmitted.
What does JPEG means?
Joint Photographic Expert Group. JPEG is a compression format and standard for still images such as pictures.
What is the medical term meaning compression of surrounding cells by the tumor cells?
Mass effect is the term for the compression of surrounding cells by tumor cells.
