JPEG - Load/Save file size

Dazed and confused - Leadtools 15 C++ Libraries

I have a JPEG image with the following FileInfo

-  fi {uStructSize=1640 Format=98 Name=0x0046f550 "acg01136hr_concrete_shingles08.jpg" ...} _FILEINFOA
  uStructSize 1640 unsigned int
  Format 98 int
+  Name 0x0046f550 "acg01136hr_concrete_shingles08.jpg" char [512]
  Width 3600 int
  Height 3600 int
  BitsPerPixel 24 int
  SizeDisk 5205577 long
  SizeMem 38880000 long
+  Compression 0x0046f764 "JPEG" char [20]
  ViewPerspective 1 int
  Order 1 int
  PageNumber 1 int
  TotalPages 1 int
  XResolution 300 int
  YResolution 300 int
  Flags 8196 unsigned int
  GlobalLoop 0 unsigned int
  GlobalWidth 3600 int
  GlobalHeight 3600 int
  GlobalBackground 0 unsigned long
+  GlobalPalette 0x0046f7a4 {rgbBlue=0 rgbGreen=0 rgbRed=0 ...} tagRGBQUAD [256]
  IFD 0 unsigned long
  Layers 0 int
  ColorSpace 1 int

As you can see is a little over 5MB on the disk. if I open it and then save it the saved version is 3X. What am I missing

 

FILEINFO fi;

memset(&fi, 0, sizeof(FILEINFO));

L_INT error;

if ((error = L_FileInfo("D:\\Jobs (D)\\4SCR\\6993\\acg01136hr_concrete_shingles08.jpg",&fi,sizeof(fi),0,NULL)) != SUCCESS)

return 0;

BITMAPHANDLE bh;

if ((error = L_LoadBitmap("D:\\Jobs (D)\\4SCR\\6993\\acg01136hr_concrete_shingles08.jpg", &bh, sizeof(BITMAPHANDLE), 0, ORDER_BGR, NULL, NULL)) != SUCCESS)

return 0;

if ((error = L_SaveFile("D:\\Jobs (D)\\4SCR\\6993\\save.jpg", &bh, FILE_JPEG_RGB, 24, 0, 0 , NULL, NULL, NULL)) != SUCCESS)

return 0;

Thanks in advance

 

I should have mentioned I want the to have the quality of the orginal.

 

I select PQ1 but it does like that setting.

Hello,

Do you see this same issue when saving with the pre-compiled C++ Class Library demo that ships with the SDK?

What quality factors have you tried when saving this file? Please note that the qFactor valud can range from 2-255, with 2 being the least compressed (and largest file size) and 255 being the most compressed (smallest file size).

The quality factor can be set with the SAVEFILEOPTION structure, which is then passed into the L_SaveFile method as the last parameter.

Also, could you provide a sample file with which you're testing this so we can try this here as well?