CODEWITHSUNDEEP
image-processing
shooting-squirrel
shooting-squirrel

Reputation: 181

Reading a tif file

When I'm trying to open a tif file with typical image editors I get a message that the tif is corrupt, but it is not.

When I do in bash : hexdump -c file.tif | head

I get :

0000000 S F S 0 1 e - � � � z � e 3 � 216 0000010 � S j � W o 205 021 215 006 � 024 E � - S 0000020 X � \0 036 022 � 022 � k n 221 � O 235 031 4 0000030 M � � \0 h � � j � J � 232 � � � ^ 0000040 232 > � g 031 � 232 , W 206 u z @ � 6 210 0000050 � � k � 022 220 b � 026 } 202 � � & m
0000060 � � 001 T ` 034 215 i 215 031 � \n 222 � 0 � 0000070 202 � 215 � � t � � B 210 � W � � 236 221 0000080 / � 237 b O 213 a � \t d 231 ; ~ > � 023 0000090 � � N 030 � . ! 033 026 � C E ; \b 231 ;

What does this mean? How to interpret this?

Upvotes: 0

Views: 1188

Answers (1)

Mark Setchell
Mark Setchell

Reputation: 207465

All TIFF files begin with "II" or "MM" to indicate byte order as Intel or Motorola... yours looks kind of wrong...

If you are on Linux or OSX, try "file file.tif" to see what your system makes of it.

Here is a TIF file from my Mac using "od -xc file.tif"... 

0000000      4949    002a    0008    0000    0015    00fe    0004    0001
           I   I   *  \0  \b  \0  \0  \0 025  \0 376  \0 004  \0 001  \0

Is it abandonwarering?

Extract resources from a SFS file

Mmmm... ok it is not a straightforward TIF and not a standard SFS file. I would try running:

od -x  yourfile   | egrep "4949|4d4d"

to see if you find the start of a TIFF file with Intel or Motorola byte ordering. If you do, calculate the offset from the first column, and use that as an offset into "dd". So, if the offset is 512 bytes, I would do

dd if=yourfile of=test.tif bs=512 iseek=1

Upvotes: 1

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