CodeProject: Classes to read and write BMP, JPEG and JPEG 2000. Free source code and programming help

This sample is an MFC application using the document/view architecture that can load, display and transcode files such as BMP (bitmap), JPEG, JPP (my private format using jpeg algorithm but with fewer overheads), jpc (jpeg 2000 code stream) and jp2 (jpeg 2000 format). It shows:

Two classes, CMiniJpegEncoder and CMiniJpegDecoder, to support .jpp format. JPP is my private format using jpeg algorithm but with few overheads. These two classes are made in 2001 for one application that compress, transmit, and decompress PC screen image. Someone might ask, we have a jpeg format, so what is the JPP format for? The answer is, the jpeg format is a little complex and may have a 600-byte fileheader. So I made a 6-byte header format called .jpp. Also, no FF markers are needed for .jpp. With simple format of .jpp, you could clearly watch the jpeg algorithm, that would be useful to someone learning jpeg.
Two classes, CTonyJpegEncoder and CTonyJpegDecoder, to support baseline jpeg format. I have no time to support other formats such as progressive + Huffman coding. It works for almost jpeg files, just with one-thousand-line codes! But if you want powerful functionality, please use IJG code. In this demo, you could choose the jpeg codec.
To show the capability of JPEG-2000, by Jasper implementation.

Contact

If you have any question, or any comments, please contact me: lintong@cis.pku.edu.cn.

History

1 Feb, 2003 - First revision.

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

About the Author

Tony Lin

Member

Dr. Tony Lin, received his PhD degree from Peking University, Beijing, China, in 2001. His interests are in Pattern Recognition, Wavelets, and Programming.

Occupation:	Web Developer
Location:	China

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Where "J2kDll.dll" comes from?

ZexinDing

18:30 15 Sep '09

Hi, Tony. Where "J2kDll.dll" comes from? Thanks
Sign In·View Thread·PermaLink	5.00/5 (1 vote)

How to run the program

fayefu

17:01 26 Jun '09

Hi
I am a newer on VC++6, could you please let me how to run this program
Its giving me error as
:\Dowloads_Software\OpenCV\TonyJpegLib_src\J2kDemo\Jpegfile.cpp(25) : fatal error C1083: Cannot open include file: 'jpeglib.h': No such file or directory

After i solve the including files error, it gives error as
Linking...
LINK : fatal error LNK1104: cannot open file "J2kDll_d.lib"
Error executing link.exe.

Please let me know the procedure to run this program n VC++6

Thanks in advance
Faye

1.00/5 (1 vote)

thank you

futurejo

20:32 5 Jan '09

good program
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Great Code, Crap Article!

Steve_pqr

1:35 24 Nov '08

How about some information/description/anything?? *Apathy Rules - I suppose...* Its not the things you fear that come to get you but all the things that you don't expect
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Simply Incredible

software_chotmail

1:09 27 Sep '08

Simple to use and also efficient. I have successfully managed to incorporate the encoder/decoder into one of my webcam applications.
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How to run the program

Member 4657805

6:48 29 May '08

Hi
I am new to VC++6 please can you let me how to run this program
Its giving me error as
:\Dowloads_Software\OpenCV\TonyJpegLib_src\J2kDemo\Jpegfile.cpp(25) : fatal error C1083: Cannot open include file: 'jpeglib.h': No such file or directory

Or when i include the folder in include it gives error as
Linking...
LINK : fatal error LNK1104: cannot open file "J2kDll_d.lib"
Error executing link.exe.

Please let me know the procedure to run this program n VC++6 or any other IDE

Thanks in advance
Priyanka

2.20/5 (5 votes)

Jpg decoder

NIkhilesh Reddy

2:22 15 Apr '08

I need jpg decoder source code in cpp. The raw data should written into the file. Please any one send the code.
Sign In·View Thread·PermaLink	1.80/5 (4 votes)

The Lib fails to decode some images

Silvio Reis Jr

2:17 24 Jan '08

I was trying your lib and found that the following image: http://rapidshare.com/files/86209410/SampleImage.jpg.html[^] can't be opened but it is a valid jpeg file. My best regards. Silvio
Sign In·View Thread·PermaLink	2.00/5 (1 vote)

ImageTranscode

dejavu

21:31 13 Dec '07

Hi Tony, Its really nice to go through your application. If i need to pass byte array in imagetranscode then wat should i do , it returned me erorr when i tried this.Is it possible that you could tell me more about Imagetranscode and its source.How could i process J2k in memory. Please help.
Sign In·View Thread·PermaLink	2.67/5 (3 votes)

how to reduce memory usage while loading background image in MFC Application?

Khathar

21:45 8 Aug '07

dear friends Rose

In MFC application (Dialog based or Cform view), if i load bitmap image in the background, its taking more memory.. Cry

here is my coding..

void CDlg_Splash::OnPaint()
{
CPaintDC dc(this); // device context for painting

HBITMAP m_Bmap;
CRect rect;
HDC memdc;

CString m_ifilename1;

m_ifilename1 = "C:\\test.bmp";

GetClientRect(&rect);

m_Bmap=(HBITMAP)::LoadImage(NULL,m_ifilename1,IMAGE_BITMAP,0,0,LR_LOADFROMFILE);
memdc=::CreateCompatibleDC(dc.m_hDC);
::SelectObject(memdc,m_Bmap);

BitBlt(dc.m_hDC,0,0,rect.right,rect.bottom,memdc,0,0,SRCCOPY);
DeleteObject(m_Bmap);
DeleteObject(memdc);
}

is it correct ? and also let me know is there any memory leakage?
is it possible to load jpeg image in MFC dialog? (to avoid more memory usage)

Thanks in Advance...

Abdul Khathar A

1.50/5 (2 votes)

Bad quality on Jpeg image

davidlks

23:35 11 Jul '07

Hi Tony, i convert my bmp to jpg but i found that the quality was so bad. This is mainly because i think my image snap by camera then process by Matrox. IF I use Paint to create a bitmap then convert to jpg it looks just normal. Do you have any idea why is that happen? If yes, please email me davidlks83@yahoo.com Thanks David
Sign In·View Thread·PermaLink	1.00/5 (1 vote)

troubles with CminiJpegEncoder/decoder

patkarbo

9:41 20 Jun '07

Hi Tony,
Really good job !

I work on DCT domain manipulation but the problem is that I am beginner in c++ programming.
I try to use your CminijpegEncoder/decoder classes separatly from your project.

Can pOutBuf (encoder) be directly be used as pInBuf for Decoder?

I had to remove "StdAfx.h" because I miss too many headers (in windows.h for example).
Is StdAfx.h really necessary ? Do you it is the reason why I have some
"Attempted to read or write protected memory. This is often an indication that other memory is corrupt." errors

Thanks for advance!
bye

PatKarbo

jpeg progressive

edatul muliana

22:06 20 May '07

how can i know how many scan in jpeg progressive file? if we meet the FFC2 in the jpeg file,we know that the file is used jpeg progressive mode,and i can see many scan(FFDA) in that file.My question is how can i know that the file contain 10 or 11 or 12 FFDA there? aries_girl5
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Motion

MrPMorris

6:49 6 Mar '07

Hi Tony Do you have any code that implements motion JPEG2000? Pete
Sign In·View Thread·PermaLink	2.00/5 (1 vote)

Fixed marker problem

LukeMulder

3:30 2 Oct '06

Hi,

i use our Jpeg - Lib and found a small bug.
If you decode an image it is allowed than am 0xFF marker
may be followed by additional 0xFF marker.

The following code will fix this issue. May you want to update your CodeProject site...

int CTonyJpegDecoder::ReadOneMarker(void)
{
   if( INPUT_BYTE(m_pData) != 255 )
         return -1;
   int marker;
   do
   {
         marker = INPUT_BYTE(m_pData);
   } while (marker == 255);         return marker;
}

Mr. Mulder

2.00/5 (1 vote)

16 bits color cannot encoder

mba6

1:35 6 Sep '06

I wrote project capture screen to jpeg file. It's very nice in 32 bits color but in 16 bits color or 256 colors the jpeg file will be wrong. How do I. Than.
Sign In·View Thread·PermaLink	1.00/5 (3 votes)

contrast tiff

HoangManh

17:08 3 Jun '06

help me code contrast tiff i want to write code contrat tiff so i don't know it
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ImageTranscode

Adi DEDIC

1:02 23 May '06

Looking at comments bellow I suppose that other people compiled and built demo project themselves. I downloaded project source and the main function is missing, by purpose or mistakenly, I do not know. Does anybody have code for function ImageTranscode which suppose to be exported from JpegLib. Function declaration is inside existing header file j2kdll.h, but function body is absent from whole lib and exe project.

2.43/5 (4 votes)

Need JPEG Decoder

kiran_siva

20:00 13 Mar '06

Hi all, i need the code for decompressing a jpeg file that is stored in a data buffer(in the form of a raw data). kiran -- modified at 1:20 Tuesday 14th March, 2006
Sign In·View Thread·PermaLink	2.63/5 (8 votes)

Re: Need JPEG Decoder

BilloKhan

21:38 22 Apr '06

I have this book. All the source code is working. In real sense it is only written for JPEG. Even the author tried to explain, but very difficult to read. This is (as I know) the only book where you can find full working example and working code.

Compressed Image File Formats: JPEG, PNG, GIF, XBM, BMP (ACM Press) by John Miano (Paperback - Aug 19, 1999)
Books: See all 18 items
Buy new: $49.99 $42.90 Used & new from $12.96 Usually ships in 24 hours

Good luck.
Poke tongue

Agha Khan

2.00/5 (1 vote)

CTonyJpegDecoder has a bug: does not work with pictures that have non-even dimensions!

herculon

3:29 27 Jan '06

if i try to load a picture with say 219 x 512 pixels, the decoder fails.
Sign In·View Thread·PermaLink	2.33/5 (3 votes)

Demo app encodes 24bpp BMPs only

VYu

21:41 25 Dec '05

Demo application crushes or produces strange JPEGs if I try to encode 8bpp bitmaps. It seems to be the problem of the demo itself, not of the encoders.
Sign In·View Thread·PermaLink	1.80/5 (4 votes)

bmp

bbiondo

0:58 30 Aug '05

hi tony, i've got a question, i'm writing an application to creating a bitmap, for example a white bmp 500x400 with three red point at coordinate (2,3) (5,6) and (3,5). Do you have any idea?
Sign In·View Thread·PermaLink	1.50/5 (2 votes)

how about 24-bits CPU

Mike0331

12:49 3 Jul '05

Hi Tony, thanks for your nice code, I am ready to port your code to a 24-bits CPU, can I just replace all 32-bits int to 24-bits int, what else should I pay attention. Thanks
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Excellent article

Duncan12345

22:43 15 Feb '05

Thanks for this excellent article! I wanted to have a look at how JPEG works, and this article is ideal, because the quality of your coding and commenting are first-rate. It's very well written, and very well explained. Good effort! Duncan
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Last Visit: 0:44 22 Nov '09 Last Update: 0:44 22 Nov '09

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