Thursday, 28 May 2015

Photo Digital File Types

  When to use GIF , JPEG & PNG   

Digital images fill up your inboxes , take up computer memory and take time to load on web pages. When working with digital image files there are certain file types to use for each circumstances 

GIF  

Graphic Interchange Format pronounced as "gif" introduced by CompuServe in  1987 to transfer image quickly across slow connection. 
It uses 256 indexed color and uses dithering a process where two pixel color  combine to make one to reduce to number of color needed. Fewer color means file even start smaller than JPEG. 
GIF Image
GIF images are compressed using the loss-less data compression technique to reduce the file size without degrading the visual quality. This compression does not lose  any data. It has a interlaced progressive loading quality, first it show low quality but later it added with better quality.  
It mainly use in animation and low resolution film clips. It also uses for small icons and web graphic with few colors. It also shows best usage in line drawing ,Single color  border and cartoon. 
And most importantly its saves to extension .gif. 

JPEG   

Joint Photographic Expert Group pronounced as "jay-peg" designed by the group in 1986 when small file size is more important than its maximum quality.  

JPEG typically achieves 10:1 compression with little perceptible loss in image quality. It uses 16 bit data format and display millions of color. It uses very complex compression algorithm and 60-70%  compression is usually optimal for website image. 
A photo of a cat with the compression rate decreasing, and hence quality increasing, from left to right.
Tools like JPEG mini compress photo up to 5 times without losing quality. Firstly image details "forgotten" and then filled in when displayed. And called lossy compression for loss data.   
It is the standard file format for digital cameras. Reduces the file size up to 15% more without losing quality. Useful for web pages specially, Facebook for faster upload. 
 It saves with the extension jpeg/jpg. 

PNG  


Portable Network Graphic pronounced as "ping or png" designed in mid 1990s as  a way around patent issues with the GIF format , benefit from both GIF and JPEG.   
PNG Image 
It also uses lossless data compression , so no data loss. PNG- 8 is very similar to GIF , it has 256 color and 1 bit transparency and also PNG 8 are even smaller than GIF files. PNG -24 is very similar  to JPEG , it can include over 16 millions colors and also lossless compression means larger files than JPEG. 
Its best usage is on webpages such as logos that involve transparency and fading . It used also when the image is in the middle of the editing process.  
It saves with the extension .png 

Saturday, 4 April 2015



Who Beats Milkha Singh , In 1962 National Games.. 

The legend of Milkha Singh has been immortalized by the recent biopic, Bhaag Milkha Bhaag.

 Indian racer , field sprinter who just started running  from EME Secunderabad and he run in such a way that he was known as 4 times Asian championship. After so much of struggle and passion to do something he attain the name of Flying Sikh. 

Makhan Singh 

                                                                   

In 1962 National games, there is also one man who beat Milkha Singh rarely know "Makhan Singh". He also won gold medal in relay race and a silver in 400m at the 1962 Asian games.
In 1962, he was conferred the Arjuna Award. 

The champion runner, however, is among the chosen few whose efforts got duly acknowledged. Not many athletes in this country can call themselves as fortunate.

Tuesday, 16 December 2014


15 Unbelievable Photos !! Rarely Seen    Before

#1 A watch belonging to Akito Kawagoe which stopped at 8:15, the exact time of the Hiroshima bombing in 1945
Akito-Kawagoes-watch

Thursday, 4 April 2013

Cut cake into 8 equal parts with three just cuts



How it is possible to cut cake into 8 equal pieces with just three cuts?


Ans :- Firstly,cut the cake horizontally and vertically divided into 4 equal parts. Then pile the cake into stack (take out the cake 4 cut pieces and put one after the above  ) . Then cut it into the middle its divided into 8 equal parts ....