Image normalization and inverse normalization

Performs image normalization and inverse normalization against affine transformation

Description

An implementation of the image normalization (and inverse normalization) part of P. Dong et al.'s paper: "Digital Watermarking Robust to Geometric Distortions," IEEE Trans. Image Processing, Vol. 14, No. 12, pp. 2140-2150, 2005.

• Required Products: Image Processing Toolbox
• MATLAB release: MATLAB 7.5 (R2007b)

[Manuel Cedillo]

Hello. My name is Manuel Cedillo Hernández. I´m student from México City. Your paper "Digital Watermarking Robust to Geometric Distortions" is very interesting. My question in this paper is: How to constructed the watermark ?. The part of CDMA is clear, but the part of convert the signal 1-D in 2-D is not clear. If it is possible, they could clarify this part to me. Thanks.

[Serap Kazan]

Hello, my name is Serap KAZAN. Image normalization program is very good. But i also need invers normalization codes. If it is possible can you send me. Thanks.

[Arunav Dutta]

There arises a white rectangular frame in the image after normalization. how to get rid of that???

please suggest

[Yuan-Liang Tang]

Dear Arunav,
The white frame may come from your original image. The program ignores black borders, but not white ones.

[hayam]

I read the paper "A Multibit Geometrically Robust Image Watermark Based on Zernike Moments"
Please, I need the implementation of the paper if it is possible. where I need some help in the part of "dither modulation". ( the implementation steps of the part "dither modulation" is unclear for me.)
thanks

[hayam]

Also , I would ask if anyone use "benchmark" to evaluate watermarking algorithm by matalb code.

I need to know, how to use it ?

[khaled Almakadmeh]

Dear Sir,
I need your help in the following:
" image MUST first be normalized w.r.t. scale and translation i.e. centroid of image is at image center, and image has geometrical moment m00 = fixed number/scale."

Could you please tell me, if the "imnorm.m" do the above description. so that I can use it as black box.

I'm appreciated for your help and support.

[Martino Nauli Risya]

hello all,

could you also provide the code for ds-cdma watermark embedding and extraction..?

thank you in advanced

[vikas]

hello sir
I am doing my ph.d in watermarking. presently i am doing the literature survey on different methods and in the initial stage of phd. I had gone through yoyr paper " digital watermarking robust to .... I had undrstand the normalization and inverese of it. but watermaring part is not clear. can u please send me the code for watermarking . my mail address is [e-mail]
thank u in advance