Info
La pregunta está cerrada. Vuélvala a abrir para editarla o responderla.
How can I find the value with the most change in my histogram?
2 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
[N,edges] = histcounts(Y);
min = mean();
[k1,k2,k3]=size(imYuv) %Size of the picture
for i=1:k1
for j=1:k2
if Y(i,j)>min
Y(i,j)=0;
end
end
end
imYuv(:,:,1)=Y;
final = colorspace('RGB<-YUV',imYuv);
![HIstogram1.jpg](https://www.mathworks.com/matlabcentral/answers/uploaded_files/242467/HIstogram1.jpeg)
I know the value is around .64 something.
But im trying to automated so it can select that for my threshold value.
4 comentarios
Image Analyst
el 13 de Oct. de 2019
I don't understand. Do you just want to blacken any values higher than 0.67? Or is it variable? Because you have lots of minimums all over the place. If it's variable then how are we supposed to know to take the min between 0.5 and 0.7 and not the min between 0.5 and 0.35, or any other min?
Respuestas (1)
KALYAN ACHARJYA
el 13 de Oct. de 2019
Editada: KALYAN ACHARJYA
el 13 de Oct. de 2019
More detail with example:
data=[1 2 -4 5 6 0 5 20 10]; % Hist data is just simillar array
diff_data=diff(data)
idx=find(diff_data==max(diff_data));
threshold=data(idx+1)
2 comentarios
KALYAN ACHARJYA
el 20 de Oct. de 2019
You can get it just see the maximum different (with neighbours) in number of pixels (N).
La pregunta está cerrada.
Ver también
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!