write this code in matlab
2 次查看(过去 30 天)
显示 更早的评论
step 1 read the image
then write it in a 2-d array(matrix)
assign i=1 and j=1 (1=rows, j= columns)
assign A(i,j)=X (this is array)
A(i,j-1)=A
A(i-1,j)=B
now give context=AB (which should be 00,01,10,11 any one of them)
if {
context=00
{
if
X=0
{ c0(00)=1+c0(00) }
else if X=1
{ c1(00)=1+c1(00) (at start c1(00) c0(00) all are equal to zero) }
cont(00)=1+cont(00)
}
else if context=01
{ if x= 0
{
c0(01)=1+c0(01)
}
else if X=1
{
c1(01)=1+c1(01)
}
cont(01)=1+cont(01)
}
else if context=10
{
if X=0
{
c0(10)=1+c0(10)
} else if X=1
{
c1(10)=1+c1(10)
}
cont(10)=1+cont(10)
}
else if context=11
{
if X=0 { c0(11)=1+c0(11)
}
else if X=1
{
c1(11)=1+c(11)
}
cont(11)=1+cont(11)
}
if j<256 (size of the image is 256*256 then we should take 256)
{
j=j+1
}
else if j=256
{ i=i+1
} if i=256 && j=256 (both should 256)
end
else go to
{
assign A(i,j)=X (it should go back to this)
} then i have to find out some float values when displaying this it should c0me steady state probabilities p(00)=cont(00)/(total number of counts i think it will be the size of the matrix 256*256)
p(01)=cont(01)/(256*256)
p(10)=count(10)/(256*256)
p(11)=count(11)/(256*256) }
now display these all the below conditional probabilities p0(00)=c0(00)/cont(00)
p1(00)=c1(00)/cont(00)
p0(01)=c0(01)/cont(01)
p1(01)=c1(01)/cont(01)
p0(10)=c0(10)/cont(10)
p1(10)=c1(10)/cont(10)
p0(11)=c0(11)/cont(11)
p1(11)=c1(11)/cont(11)
similarly all the values then h(00)=p0(00)logbase2(1/p0(00)) +p1(00)logebase2(1/(p1(00)
h(01)=p0(01)logbase2(1/p0(01)) +p1(01)logebase2(1/(p1(01)
so onll ti h(11) can we write h(00)= h(AB)?? these 00,01,10,11 are actually AB it is very hard how to write all and display all these assign h(s) entropy= p(AB)H(AB) end the way i wrote in my notes p(00)h(00)+p(01)h(01)+p(10)h(10)+p(11)h(11) display all these values }
3 个评论
Jan
2013-5-28
Do you have a specific question or do you assume that we solve the complete problem for you?
回答(1 个)
Image Analyst
2013-5-28
Indexes have to be integers like 1, 2, 3, etc. (or logical true/false) - you can't have an index of 00. You'll have to figure that out. And, MATLAB code doesn't use { to start a block, and it uses "end" instead of } to finish a block. Comments begin with a % symbol. I, for one, don't have time to fix your code or translate it into MATLAB code for you. Good luck.
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Data Import and Export 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!