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#1 Posted : Monday, August 27, 2007 6:38:02 AM(UTC)
cornellbox

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Posts: 2


Hi,

I need to load portions of an image without loading the entire image. Is it possible?

I know that wavelet based formats allow such a way of working, but I don´t know if LeadTools has any routine to do so based on its own implementations of Jpeg2000 or ECW.

Thx
 

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#2 Posted : Monday, August 27, 2007 12:50:43 PM(UTC)

BoydP  
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What LEADTOOLS version and interface (COM, OCX, API, etc.) are you using?


You want to display only portions of an image and not the entire image, correct?
 
#3 Posted : Monday, August 27, 2007 11:14:00 PM(UTC)
cornellbox

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I´m using v.15 c++ classes.

Correct.I want to load only portions not the full image.
 
#4 Posted : Thursday, August 30, 2007 9:20:59 AM(UTC)

BoydP  
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The following code will load a specified rectangle of an image (any format).

LFile file;
LBitmapBase bitmap;

file.SetBitmap(&bitmap);
file.SetFileName(TEXT("c:\\image1.j2k"));  //replace this with path to your image
nRet = file.LoadTile(0,0,500,500);  //left,top,width,height on the source bitmap
if(nRet != SUCCESS)
  return FALSE;

The region you specified will now be loaded in to the bitmap object.


If you have any other questions please feel free to ask.
 
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