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- Using TIFFDUMP
-
- You use the TIFFDUMP utility to display information about TIFF (Tagged
- Image File Format) images. The TIFFDUMP utility is automatically
- copied to your PhotoFinish directory and added to your PhotoFinish
- program group during setup. The name of the icon is Tiff File Info.
- The TIFF file format has gone through several revisions and the different
- versions are often incompatible. PhotoFinish supports TIFF version 5.0
- and can often load version 3 and 4 TIFF files.
-
- PhotoFinish can read uncompressed TIFF files and TIFF files created
- with various compression schemes such as PackBit and CCITT for black
- and white pictures, LZW (Lempel, Ziv, Welch) for gray scale and 256
- color pictures, and 24 bit for 24 bit color pictures.
-
- You should keep in mind the following conventions used in the command
- line format for DOS utilities:
- Include file extensions when filenames are called for.
- Include backslashes in paths (e.g., C:\PHOTO\EXAMPLE.PCX).
- Separate multiple options with a space.
- Square brackets "[ ]" enclose optional parameters that you replace.
- Braces "{ }" enclose required parameters that must be replaced.
-
- To view the header information of a TIFF file in Windows:
- 1 Activate the Windows Program Manager.
- 2 Double-click the Tiff File Info program icon in your PhotoFinish group.
- 3 Type the filename you want information about.
- If the picture you want to know about is in a different directory, type its
- full path and name.
- 4 Press Enter.
- TIFFDUMP displays an executive summary about the file. See the
- following chart for the information TIFFDUMP includes in the summary.
- 5 TIFFDUMP asks you to enter a command if you want more
- information.
- Type "Q" to quit the utility if you do not want more information.
- For a list and explanation of each command see TIFFDUMP
- Command Options following this discussion.
- You can also type "?" and TIFFDUMP will display a list explaining the
- commands.
-
- TIFFDUMP Executive Summary
-
- When you use the TIFFDUMP utility, an Executive Summary appears on
- your screen with the following information:
-
- Byte Order: the type of files TIFFDUMP supports. TIFFDUMP cannot
- read Motorola files. However, PhotoFinish can load files generated using
- Motorola Byte Order. (Motorola byte order files generally are created on
- a Macintosh. Intel byte order files generally are created on a PC.)
-
- Image Number: which image is being reported on if you have a TIFF file
- that contains more than one image.
-
- Image Size: the dimensions of the picture in pixels.
-
- Number of Colors: the number of colors in the picture's palette.
-
- Compression Scheme: how the image was stored in the TIFF file.
- PhotoFinish supports Uncompressed (appears as None), PackBit,
- CCITT, 24 bit, and LZW compression schemes.
-
- Bits Per Sample: the space needed to create one pixel of color on your
- screen.
-
- Approximate Size: the estimated size of the uncompressed TIFF file.
- This number gives you an idea of how much RAM is needed to load the
- picture.
-
- X resolution/Y resolution: the number of dots-per-unit that PhotoFinish
- uses to create the picture. The X and Y resolutions depend on the
- settings you used when you created the picture. For example, if you
- have a 300 dpi printer and you chose for your picture to be based on
- printer, the X and Y resolutions will both read 300 in the TIFF Executive
- Summary.
-
- TIFFDUMP Command Options
- You can view other information after the executive summary. Type the
- letter of the command you want or type "?" to see a list of the
- commands. Below is a list of the available options and the information
- they provide.
-
- C: Color Curve. The Gamma Corrected RGB values for the palette of the
- picture you are checking. Black and white pictures have no Color Curve.
-
- D: Dump Tags. Information about each TIFF tag within a picture file.
- This information may be needed if you call Technical Support.
-
- G: Gray Curve. Color values for all of the grays in the palette of the
- picture you are checking. Black and white pictures have no Gray Curve.
-
- M: Color Map. All the RGB values for each color in the palette for the
- picture you are checking. Black is represented by 0,0,0 and white is
- represented by 65535,65535,65535. All of the other colors in the palette
- are represented as values of red, green, and blue from 0 to 65535. Black
- and white pictures have no Color Map.
-
- N: Next Image. TIFFDUMP information about the next image in the TIFF
- file if you have opened a TIFF file that contains more than one picture.
-
- Q: Quit. Allows you to leave the TIFFDUMP utility.
-
- Running TIFFDUMP from DOS
- You can use the TIFFDUMP utility in DOS. To do this, exit Windows and
- type the following command at the DOS prompt:
-
- [drive:][path]TIFFDUMP [drive:][path] {tiffilename}
-
- For example, if the TIFFDUMP utility is in C:\UTILITIES and
- SPACEMAN.TIF is in D:\PICTURES you would type this command line:
-
- C:\UTILITIES\TIFFDUMP D:\PICTURES\SPACEMAN.TIF
-