I really dont know what to do or say :(

No..im just quoting the stuff my project guide has said ... Like he gave me an example was : When u open a paint application ...draw sumthing in it ..and the "Save As" option gives options to save as a number of file options .. So , there has to be a general algo that applies to all .. Sadly, he had read it in a book ,6-7 yrs back...hehee..whose name he cant recall:)

Ok...heights now my giude tells me that my way was totally wrong ... :( He wants me to learn algorithms ...that will are general to all iamges ... !! ie how an image will be stored on the hdd..it seems there is an algo for that ..that applies to all types of images Does neone have a knowledge abt this ?? Sorry ...abt the confusion created in the above posts .. Thanks , Jomy

How i wish i could tell him that !! But i have to ....sadly ...for making life hell for me :( Is there like no solution for this problem ?? Although im not sure ..but mebbe hez asking me to do it using C++ , bcos eventually when i want to send my file as an SMS , i have Symbian as my OS ...and mebbe it supports only that compiler ...!!! Anyways , as Jpeg is compressed , like you said .... How would i then read the RGB / YCbCr values ?? Please help me wid this !!! A totally frustrated jomy

Anyways its not suiting my purpose...i just cant use VC!! My project guide in college wants me to compulsorily use ..plain ol C++ !!! Also , in a Jpeg file ...where do i get the pixel related color information ...as in I scanned the Jpeg file format ...but I cant find a specific offset from where actual pixel information starts .... jpeg is just clustered as headers ..... Please tell me Thanks , Jomy

Honestly ...i did not understand anything of what uve said ... Can you please explain in detail ...if its not a botheration .. as in GetRValue , GetBValue ..etc are functions in C++ or VC++ ?? Help !! Sorry for the trouble ..... Thanks, Jomy

i have to code purely in C++ ...!!! newes ..using Sir Johann 's method is gud..assuming thats the right defn of intensity .... Anuther thing one of my friends suggested ..was to convert to gray scale ..and check for similar intensity ... Will that be rite ? And all i have with me in C++ , for RGB color extraction is getpixel() ...how do i process my Jpeg file using getpixel as its just returning me single integer values .... That is ... int c = getpixel(0,0) cout << c ; gives me not the typical 32 bit value ...but a single 0 and a series of sets of 0's and 7's when tried for the entire file ! How should i continue ? Thanks Jomy

Im not supposed to use VC ....plain C++ ... Im thought of using the getpixel() function but ...its returning me ..integer values ...actually am not sure ..whether im thinking in the right pattern or not ... And would ASCII art fit into the SMS character set ?? Only then i would be able to use it ... Please guide .... Thanks Jomy

actually hoinestly i dunno .... What i am told to do is ... Group information similar to pixels ...and send them in this format as text ...as in SMS .... So , most probably it would be color .... Please help Thanks , Jomy

Hey all ..... Can someone tell me ....what kind of algorithm i could use ...to calculate the pixel intensity values ..ie their color ?? I have a image processing book by Gonsalez ...but cant find exactly what i need .... Im supposed to find the pixel intensities of all the pixels in a Jpeg file ...and group all the pixels having the same values ... Please guide me .... Thanks , Jomy

thanks a lot ..... I have finished reading a Jpeg file ...using the File format of Jpeg ....and have the charcters in hex .... Now ...are there any hex encoding tables..or sum rule by which i can encode my hex set of numbers to a Sms character set ???

hey all ...im kinda new to this place .....so dunno whether im posting in the right place ..... I have to complete this thing in a span of 3 days ..i dunno how ...but here goes ... Take a Jpeg image and convert it to text ... Can i get som ekind of algorithm for this purpose...or even a JPEG image file format ?? Or even links to those .... The links that i have tried .....give me the details as to how a JPEG image is made .... not how the file is arranged .. Can someone guide me in this respect ..... Thanks , Jomy