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updated 4 days ago

Motion Estimation and Steganography by Santhana Raj

This program does the Motion Estimation analysis and data hiding (video, motion extimation, data hiding)

PSNR(A,B)

YUV=rgb2yuv(RGB,plot_flag)

[E_temporal,x_motion,y_motion,pf]=temporal_predict(im_old...

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updated 6 days ago

H.264/AVC video Stream by Santhana Raj

THis functions convers a avi video file into H.264/AVC video stram andthen reconverts it back. (h264, h264avc stream, video)

YUV=rgb2yuv(RGB,plot_flag)

[IM_Data,hid_data]=recover_bit(I,siz,bit)

[Side_Info, blk_im]=Encode(Side_Info,im_old, im_new,recon...

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updated 3 months ago

Watermark DCT by Suraj Kamya

Watermarking in frequency domain using DCT (watermarking, dct, frequency domain)

[embimg,p]=wtmark(im,wt)

[wm]=exwmark(embimg)

wmark_enc(varargin)

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updated 4 months ago

Reversible Image Data hiding using Quad-tree Segmentation and Histogram Shifting by Krishna Kumar P

A high capacity histogram based reversible data hiding with relatively lower distortion. (quad tree, quad treesegmentation, reversible data hidin...)

Split(b,mindim,fun)

flag=Predicate(region,sq)

str=convert_binary(abc)

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updated 2 years ago

Image Description Notes (with LSB encoding) by Michael Chan

The objective is to illustrate how certain reference may be made to a given image. (text, bit, data hiding)

allocateDataBitsByN_SizeBitsIntoByteArrays( bitStream, N )

bitStreamToIntArray( bitStream )

convertInt8ToBitStream( dataToBeInsertedAsBits_inDec )

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updated 2 years ago

Embedding/ Hiding Image Within Image (with LSB encoding) by Michael Chan

The objective is to illustrate how an image may be embedded or hidden within another given image. (bit, data hiding, description)

allocateDataBitsByN_SizeBitsIntoByteArrays( bitStream, N )

bitStreamToIntArray( bitStream )

convertInt8ToBitStream( dataToBeInsertedAsBits_inDec )

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updated 2 years ago

Binary Image Watermarking/Data Hiding: Data, Algorithms, and Distortion Measure by Haiping Lu

A package on binary image watermarking/data hiding, including data, algorithms & distortion measure. (watermarking, data hiding, binary image)

DRDValue=CalImDistDRD(OriImg,DistImg,MaskSize)

DesignNoise(ImName,Dimention,IgnoreT,blksize,IncVal,Diffe...

DistTable=CalDisTable(ImName,Dimention)

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updated 5 years ago

Reversible Watermarking by Difference Expansion by Asad Ali

Reversible Data Embedding Using Difference Expansion by J. Tian (difference expansion, reversible watermarki..., j tian)

DE_Algorithm(originalImage,T,EMBED_DIRECTION)

[PeakSNR, Mean2err]=psnr(OriginalImage, DegradedImage)

DE_embedding.m

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updated 7 years ago

Recovering data hidden in an image by Nithya V S

Recovers the text embedded using 'embedbp' in the Bth bit-plane of the input image, given the length (application, image processing, watermarking)

recoverbp(I,siz,b)

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updated 7 years ago

Hiding data in an image by Nithya V S

Embeds the input data (text, or string) in the specified bit-plane of the input image and returns th (application, image processing, watermarking)

embedbp(I,txt,b)

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