Histogram Difference error Code, HLP pls

Hi all.

I hope that before proceeding to the reading of my doubt, everyone is well.

Dear colleagues, I am trying to calculate the Histogram difference using the equation of this article.

http://www.ijircce.com/upload/2015/august/2_Histogram.pdf

Where,

n is the total number frames.

h1 is the current frame.h2 is the next frame

***********************************************

This is the code that I am using.

Video_Input = 'Avirio.mp4'; %Video Name

Video_Obj = VideoReader(Video_Input); %Using Command (Videoreader) for reading video

%Extracting frames

Total_Frame_Video_Obj= Video_Obj.NumberOfFrames; % Calculating number of frames

for i=1:Total_Frame_Video_Obj-1

C_Frame=read( Video_Obj,i); % "Select the Current Frame"

if(i~=Total_Frame_Video_Obj)

N_Frame=read( Video_Obj,i+1); % "Select the Next Frame"

%To calculate histogram difference between two frames

HD=Histogram_difference(C_Frame,N_Frame,Total_Frame_Video_Obj);

FrametoFrameDiff(i)=HD;

end

end

function [ res ] = Histogram_difference( C_Frame,N_Frame,Total_Frames)

Hist_CF=imhist(C_Frame); %histogram of data

Hist_NF=imhist(N_Frame);

%difference=imabsdiff(Hist_CF,Hist_NF);

difference=(1/Total_Frames^2)*(256*(((Hist_CF-Hist_NF).^2)/max(Hist_CF,Hist_NF)));

res=sum(difference);

end

if I use the equation before mentioned the following error is generated.

but if I use Matlab own equation "imabsdiff", the code works perfectly.

Please could someone help me and rectify what is my mistake.

Thanks and everyone have an excellent weekend

Answer 1

[Image Analyst]

HD is not a scalar, which it needs to be in order to be the i'th element of FrameToFrameDiff. HD is a vector with more than one element.

[Dracfov]

Thank you dear friend, but I still have my doubts, how to implement, could you show me an example.

[Image Analyst]

Make it easy for us to help you.

Attach 'Avirio.mp4' with the paper clip icon. Zip it if you have to.

[Dracfov]

Good morning dear friend, thank you for giving me the help, here I attached the video and the document.