Legacy ImageMagick Discussions Archive

requirement for my project is whether use PSNR or MSB(Most Significant Bit)
if i not wrong, the script will generate MSB (correct me if I'm wrong) when 2 image are being compared

i think i will go for MSB

thank you for your time :)

PSNR is expressed as decibels and so can in principle be larger ...

hi
as the title it implies

i would like to know how to compare original image and stegano image with PSNR or MSB effectively
it is because i tried to compare original image and stegano image with PSNR and the result is awkward

as far a i understand, PSNR value ranging from 0 - 100 and stegano ...

hi

hope that this is not wrong forum ;)
i got a project that requires me to do a stegano image
and stumbled upon this impressive tools

upon presenting to the professor (as i'm using only your component not the algo) he request me to show how in the mathematically (not in programming) the stegano ...

the problem with IM watermark is they're visible

the requirement is that you need to create a invincible watermark like digimarc did
that why i change from watermark to stegano

yeah, i know it quite troublesome for your to understand my situation and that is the issue

Why do you want to use Imagick. It is no longer supported and does not have all the IM functionality. You can easily follow the examples at http://www.imagemagick.org/Usage/transform/#stegano, and just put them into PHP exec().

i'm using this just as requirement for my class project
actually ...

hi guys

i'm continuing my journey from command line IM to here
http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=22436

for my question
please enlighten me on how to use steganoImage command in PHP from convert to stegano until reverse the image to see the message hidden ...

thanks a lot for guiding me to the end of the road
next road is a imagick in php

thank a lot
you really save my early morning (in malaysia )

fred

below is my version installed
Version: ImageMagick 6.8.0-2 2012-10-24 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2012 ImageMagick Studio LLC
Features: OpenCL

i got the 'hang' problem when using command line and not in php
wonder what the error

the test just fine with the ...

thanks for the fast reply

composite message.gif rose: -stegano +15+2 rose_message.png

as far as i know rose is embedded in the imagemagick system, so how can i call my own image instead of calling 'rose', 'logo' and other embedded image
i tried replacing rose with 'myownimage.png': but the ...

hi

it's been many months since i use your imagick and let say it very usable to me (although i'm not very expert in scripting and programming)

i would like to ask about php steganoImage usage as there's no proper documentation in php site
would you explain a little on how to properly stegano an ...