FileSize when saving TIF/JPEG

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mvanrijnen
Posts: 10
Joined: Mon Apr 15, 2013 1:27 pm

FileSize when saving TIF/JPEG

Post by mvanrijnen » Wed Oct 02, 2013 1:53 pm

Hi (again :)),

Filesizes when saving TIF/JPG are 2-3 times the size we are used to.
Are you planning to support more options for TIF/JPG (Photometric & ColorSpacings?),
Look at the output for the following file:
( gdpicture, jpegqualitry 50% size: 917KB, leadtools jpegq. 80: size: 412KB)

GDPicute Output:
SubFileType (1 Long): Page
ImageWidth (1 Short): 2546
ImageLength (1 Short): 3333
BitsPerSample (3 Short): 8, 8, 8
Compression (1 Short): JPEG Technote #2
Photometric (1 Short): RGB
FillOrder (1 Short): Msb2Lsb
Make (12 ASCII): KODAK i1440
Model (12 ASCII): KODAK i1440
StripOffsets (18 Long): 8, 111859, 239536, 373619, 489224, 602515,...
Orientation (1 Short): TopLeft
SamplesPerPixel (1 Short): 3
RowsPerStrip (1 Short): 192
StripByteCounts (18 Long): 111851, 127677, 134083, 115605, 113291,...
XResolution (1 Rational): 300
YResolution (1 Rational): 300
PlanarConfig (1 Short): Contig
ResolutionUnit (1 Short): Inch
PageNumber (2 Short): 0, 0
Software (18 ASCII): IDTTIFResampler#2
DateTime (20 ASCII): 2009:11:18 16:12:17
Artist (4 ASCII): MVR
HostComputer (8 ASCII): MVR-WXP
SampleFormat (3 Short): 1, 1, 1
JpegTables (73 Undefined):



LeadTools Output:
SubFileType (1 Long): Zero
ImageWidth (1 Long): 2500
ImageLength (1 Long): 3521
BitsPerSample (3 Short): 8, 8, 8
Compression (1 Short): JPEG Technote #2
Photometric (1 Short): YCbCr
StripOffsets (1 Long): 360
Orientation (1 Short): TopLeft
SamplesPerPixel (1 Short): 3
RowsPerStrip (1 Short): 3521
StripByteCounts (1 Long): 430010
XResolution (1 Rational): 300
YResolution (1 Rational): 300
PlanarConfig (1 Short): Contig
ResolutionUnit (1 Short): Inch
PageNumber (2 Short): 0, 0
Software (16 ASCII): IDTTIFResampler
JpegProc (1 Short): 1
JpegIFOffset (1 Long): 360
JpegIFByteCount (1 Long): 430010
JpegRestartInterval (1 Short): 0
YCbCrSubsampling (2 Short): 2, 1
YCbCrPositioning (1 Short): 2
ReferenceBlackWhite (6 Rational):

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Loïc
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Location: France
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Re: FileSize when saving TIF/JPEG

Post by Loïc » Thu Oct 03, 2013 8:20 pm

Hello,

We are already working on this YCbCr color saving for JPEG in TIFF. I think you should expect to get this option within GdPicture 10.1 or 10.2.

With best regards,

Loïc

mvanrijnen
Posts: 10
Joined: Mon Apr 15, 2013 1:27 pm

Re: FileSize when saving TIF/JPEG

Post by mvanrijnen » Fri Oct 04, 2013 9:00 am

That would be very nice.
(also in multiformat multipage tif files i assume?)

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Loïc
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Posts: 5881
Joined: Tue Oct 17, 2006 10:48 pm
Location: France
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Re: FileSize when saving TIF/JPEG

Post by Loïc » Fri Oct 04, 2013 12:03 pm

Yes also in multipage. The feature will be available next week.

Kind regards,

Loïc

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