What is the ideal value of UACI for image encryption scheme?

UACI - Unified Averaged Changed Intensity between cipher images. Why some papers refer ideal value to be 33.33 and some refer it to be 33.46? Which is the correct value? (In reference to image...

11 February 2021 9,562 2 View

Should a better value for UACI be below or closer to ideal values or higher as possible?

The ideal theoretical value for UACI(Unified Average Changed Intensity) is 33.33% for testing the robustness of image encryption algorithm against differential attacks. Is it better to have a UACI...

30 January 2021 2,016 3 View

How to find the chi square test value for histograms of plain and cipher image?

I want to test the uniformness of values in histogram through chi-square analysis in an image encryption algorithm.

29 January 2021 4,093 2 View

What are different ways to compare the histogram of cipher images from various encryption schemes?

Is there a metric to find if one histogram of cipher image is better than other? I tried calculating the variance of the image but couldn't get the intended results. Are there ways to compare...

28 January 2021 479 3 View

How is the variance for an image exactly computed to test the uniformness of its histogram?

I am trying to compute the variance of a plain and cipher grayscale LENA image... I found in a paper that variance value is equal to 630780 for a plain Lena image while if I calculate I find it...

28 January 2021 8,036 5 View

Should the correlation between adjacent pixels in a cipher image be low or close to zero as possible?

This question in the relation to calculating the horizontal, vertical, and diagonal correlation of a cipher image in an encryption algorithm. I have read that the correlation values should be as...

13 January 2021 1,297 4 View

What are some of the efficient techniques used for image scrambling?

I am using 3D Arnold transform for my EC-ElGamal encryption technique but it consumes a lot of time during the execution of the program using Python. So I was wondering if there are BETTER ideas...

07 January 2021 205 2 View

What are the assumptions and limitations of Miner's rule ? Is there any better cumulative damage model available for steel?

What are the assumptions behind miner's rule? Is there any cumulative damage model that takes care of these assumptions?

14 December 2020 333 1 View

How do i code to get the correlation coefficient along horizontal, vertical and diagonal for plain and cipher images?

I am trying to do the correlation analysis for grayscale images and their ciphers in Python or MATLAB. But I don't understand how to code the same. Also, I didn't get any function or existing code...

01 December 2020 6,388 3 View

What is the significance of hysteretic energy in RC member?

How can we use the energy demand of beams and columns or other structural memebers in real fileld? What are the applications of energy based design method?

25 November 2020 7,433 1 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 3 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 View

Shall I skip the measurement model in SmartPLS?

Hello everyone, I had run a mediation model in SmartPLS using questionnaires that were already validated among my statistical population. A professor who edited my paper -though she is not...

01 March 2021 3,052 3 View

In Molecular Dynamics Simulation, how do I make changes to the force field according to my protein?

Hi In Molecular Dynamics Simulation, how do I make changes to the force field according to my protein? I got this error in the add-ion stage: Fatal error "./ amber99sb-ildn-HHH.ff / force...

01 March 2021 8,747 4 View

Does anyone know to clarify these changes?

01 March 2021 1,290 2 View

How to calculate the crystallinity of cellulose film?

27 February 2021 2,753 4 View