mechri khaled

Attivo dal 2016

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Domanda

Ihave try to translate image using this but an error appear if you can help me ,thanks?
I = imread('cameraman.tif'); imshow(I) J = imtranslate(I,[15, 25]); figure; imshow(J); J = imtranslate(I,[15, 25],'OutputVi...

oltre 9 anni fa | 0 risposte | 0

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Domanda

i have problem when i applicated some attacks on a watermark video with lsb i c'ant the watermark please if you can help me?
this is my code of detection watermark: function varargout=dewatermarkimg(varargin) % Cette fonction effectue l'opératio...

oltre 9 anni fa | 0 risposte | 0

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Domanda

i have problems when i try to detect watermark after attacks with lsb with lsb crypted by a key,please give me any idea to get the presence of watermark
function varargout=dewatermarkimg(varargin) % Cette fonction effectue l'opération d'extraction d'un filigrane % Type d'image,...

oltre 9 anni fa | 0 risposte | 0

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Domanda

i have this partie of code of watermarking image using LSB i need understand how its done to watermark this image nd thanks
function [Img_w,str] =watermark_img (img, img_logo); % Cette fonction insère un filigrane d'image dans une autre % l'image pas...

oltre 9 anni fa | 0 risposte | 0

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Domanda

I have found this code of watermarking image with LSB technique and I need just to understund it ,and how it work or how he embed the watermark and all steps to do it i need them soon if you can thanks!
function varargout=waimg(varargin) %Questa funzione inserisce un'immagine watermark all'interno di un'altra %immagine p...

oltre 9 anni fa | 1 risposta | 0

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Domanda

i have problem when i would rotate xlabel of bar graph on matlab
numbers = magic(5); labels = {'label 1', 'label 2', 'label 3', 'label 4', 'label 5'}; bar(numbers(:,1)) set(gca, 'XTickLabel'...

oltre 9 anni fa | 1 risposta | 0

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Domanda

I have this code of embed and extract texte data into an image using DWT watermark technique with matlab .I need the know algorithm used for this code to embed a text,extract them and the steps thats used to embed and extract data,explanation of code
Data Embedding: coverImage = imread('lena.bmp'); message = importdata('minutiaTest.txt'); %message = 'Bifurcations:'; [LL...

oltre 9 anni fa | 0 risposte | 0

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Domanda

I have a problème when i use the function reshape if you can help me or get me another equal function
message=reshape(message(Mn*Mc,1)./256); this following error will always apear: to reshape an image the number of elem...

quasi 10 anni fa | 1 risposta | 0

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Domanda

I need to play the video after embedding data in his frames with implay
i have to play all frames directly when i finish watermarking it just thats

quasi 10 anni fa | 0 risposte | 0

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Domanda

I have problème with lsb watermarking technique when i insert the watermark into the frames of a video and create the watermarked video and when i try to get the watermark after extracting the from the watermarked video the watermark have not apear
if true % code end

quasi 10 anni fa | 0 risposte | 0

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