I have been trying to scan BMP image (seeing as my Officejet T45 scanner cant be
used on linux). i got the BMP by taking a photograph of the paper I wanted to
scan to text. can anyone please advise on this?

home@home-desktop:~$ ocrad --help
GNU Ocrad - Optical Character Recognition program.
Reads pnm file(s), or standard input, and sends text to standard output.

Usage: ocrad [options] [files]
Options:
-h, --help display this help and exit
-V, --version output version information and exit
-a, --append append text to output file
-b, --block=<n> process only the specified text block
-c, --charset=<name> try `--charset=help' for a list of names
-e, --filter=<name> try `--filter=help' for a list of names
-f, --force force overwrite of output file
-F, --format=<fmt> output format (byte, utf8)
-i, --invert invert image levels (white on black)
-l, --layout=<n> layout analysis, 0=none, 1=column, 2=full
-o <file> place the output into <file>
-p, --crop=<l,t,r,b> crop input image by given rectangle
-s, --scale=[-]<n> scale input image by [1/]<n>
-t, --transform=<name> try `--transform=help' for a list of names
-T, --threshold=<n%> threshold for binarization (0-100%)
-v, --verbose be verbose
-x <file> export OCR Results File to <file>