I try nconvert with the following commandline:
C:\XnView\nconvert.exe -out tiff C:\sourceimage.jpg
result: C:\sourceimage.tif
the source jpg images are 74 kb but the converted tif image are 1187 kb
I want know how can I get the same or close kb size in converted image than source image
Thanks in advance.
target same size than source
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- XnThusiast
- Posts: 4238
- Joined: Sun Apr 29, 2012 9:45 am
- Location: Cheltenham, U.K.
Re: target same size than source
TIFF files that are uncompressed are large so you need to add an appropriate form of compression.
The compression syntax for TIFF is:
where value is one of the following numbers:
1 (Rle), 2 (LZW), 3 (LZW+Prediction)
4 (ZLIB)
5 (CCITT G3), 6 (CCITT G3-2D), 7 (CCITT G4) only B/W
8 (JPEG) only 24/32 bits
If your JPEG is colour you might try 2 (LZW) or 8 (JPEG) for a start, and if your JPEG is black and white 7 (CCITT G4) should be very effective.
You can obtain a listing of the nconvert command line options as a text file by entering
Note: You are using NConvert but you have posted in the XnConvert section of the forum...
The compression syntax for TIFF is:
Code: Select all
TIFF -c value
where value is one of the following numbers:
1 (Rle), 2 (LZW), 3 (LZW+Prediction)
4 (ZLIB)
5 (CCITT G3), 6 (CCITT G3-2D), 7 (CCITT G4) only B/W
8 (JPEG) only 24/32 bits
If your JPEG is colour you might try 2 (LZW) or 8 (JPEG) for a start, and if your JPEG is black and white 7 (CCITT G4) should be very effective.
You can obtain a listing of the nconvert command line options as a text file by entering
Code: Select all
nconvert -help > nconvert.txt
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- Posts: 2
- Joined: Sun Oct 20, 2013 7:08 pm
Re: target same size than source
Thanks cday
now file size are 27 kb
it is my commandline:
NconverterPath & " -out tiff -c 2 -one_strip " & FullPathJPGsourceimage
now file size are 27 kb
it is my commandline:
NconverterPath & " -out tiff -c 2 -one_strip " & FullPathJPGsourceimage