Question

Hello.I have extracted some features of kimia216 database.now I need to do retrieval based on those features I've extracted. but I have no idea what should I have to do. I know what is shape retrieval.but I dont know how to implement it on matlab

Hello.I have extracted some features of kimia216 database.now I need to do retrieval based on those features I've extracted. but...

3 years ago | 1 answer | 0

Question

dear all:I have a 6* 3 matrix. I wanna choose 4rows randomly. how can I selecete all array in a rows randomly without replacement?

for example: A=[1 2 3;2 3 5;6 4 1;8 6 0;2 4 1;1 4 7;8 4 2]; and the answer is: [1 2 3;6 4 1;8 6 0;8 4 2];

3 years ago | 1 answer | 0

Question

hello. I have two binary image which contain a shape. I want to have the same contour size in each shape.how can I do this?

hello. I have two binary shape . I want to have the same contour size in each shape.how can I do this?

3 years ago | 0 answers | 0

Question

Dear all, what is the differences between shape recognition and shape retrieval? thanks in advance

Dear all, what is the differences between shape recognition and shape retrieval? thanks in advance

3 years ago | 0 answers | 0

Question

hello all.I have a big problem. i have a 5*3 matrix.I want to eliminate rows that the third column related to it, is less than 3.how can I do this? I have no idea. thanks a lot

for example:a=[1 2 3;4 3 2;1 4 6;8 3 0;2 4 1]; and the answer is: [1 2 3;1 4 6]

3 years ago | 1 answer | 0

Question

Hi,I have a vector which contains 10 entries. I choose 6 entries among all entries. now I want to find out the index of chosen entries. how can i do this.?

for example: A=[1 3 5 2 7 4 9 1 4 5]; and chosen entries=[1 5 7 4 9 5].and the index I need to calculate is:[1,3,5,6,7,10]. I ...

3 years ago | 1 answer | 0

Question

can any one tell me how can i change the color of different part of a contour?like an image i attached here.I have no idea.thanks in advance

can any one tell me how can i change the color of different part of a contour?like an image i attached here.I have no idea.thank...

3 years ago | 1 answer | 0

Question

can any one tell me how can I find the number of pixel between two point on a closed contour? I know that there are two path between two point on a closed contour. i need to find the shortest path. please help me. I think a lot but got no solution

can any one tell me how can I find the number of pixel between two point on a closed contour? I know that there are two path bet...

3 years ago | 2 answers | 0

Question

dear all: is there any matlab command for finding the geodesic distance between two points on a contour?

dear all: is there any matlab command for finding the geodesic distance between two points on a contour?

3 years ago | 1 answer | 0

Question

i have some data like: q=[1 2;2 4;5 8;2 9;3 6].now i want to find out which row contain (2 9). here the answer is 4. but i dont know how can i find this answer with matlab.

i have some data like: q=[1 2;2 4;5 8;2 9;3 6].now i want to find out which row contain (2 9). here the answer is 4. but i dont ...

3 years ago | 0 answers | 0

Question

Dear all: I have a 5*2 matrix. i want to find out the row and column of a special value.let A=[1 2;4 5; 1 8;2 6;9 7] I want to find the row and column of 9 and 7.how can i do this?

Dear all: I have a 5*2 matrix. I want to find out the row and column of a special value.let A=[1 2;4 5; 1 8;2 6;9 7] I want to ...

3 years ago | 1 answer | 0

Question

Dear all: I have a binary shape. I extracted the boundary contour. now I want to do non uniform sampling on boundary contour. something like I attach here. I have no idea. can anyone help me? thanks in advance

Dear all: I have a binary shape. I extracted the boundary contour. now I want to do non uniform sampling the boundary contour. s...

3 years ago | 0 answers | 0

Question

Dear all: I have a binary shape. I extracted the boundary contour. now I want to do non uniform sampling the boundary contour. something like I attach here. I have no Idea. can anyone help me? thanks in advance

Dear all: I have a binary shape. I extracted the boundary contour. now I want to do non uniform sampling the boundary contour. s...

3 years ago | 0 answers | 0

Question

Dear all: I have a binary shape that attached it here.I want to separate the main body from the details. details are some part of the body like legs face trail...can any one help me? I really need help. thanks in advance

Dear all: I have a binary shape that attached it here.I want to separate the main body from the details. details are some part ...

3 years ago | 0 answers | 0

Question

can any one tell me how can I smooth a boundary of a shape? I attached the shape here.I really need help. i want to conteniu smoothing until I achive a ellips

can any one tell me how can I smooth a boundary of a shape? I attached the shape here.I really need help. i want to conteniu smo...

3 years ago | 1 answer | 0

Question

can any one tell me what dose ''x = [441x2 double] '' mean? x is a variable . thanks in advance

can any one tell me what dose ''x = [441x2 double] '' mean? x is a variable . thanks in advance

3 years ago | 2 answers | 0

Question

I have a binary shape that attached it here. i have a set of discrete [x,y] coordinates of shape's contour. now i wanna find the curvatur of contour. how can i do this? i wanna have a diagram like i attached here.

I have a binary shape that attached it here. i have a set of discrete [x,y] coordinates of shape's contour. now i wanna find the...

3 years ago | 0 answers | 0

Question

I have a binary shape that attached it here. i have a set of discrete [x,y] coordinates of shape's contour. now i wanna find the curvetur of contour. how can i do this?

I have a binary shape that is attached here. I have a set of discrete [x,y] coordinates of shape's contour. Now I wanna find th...

3 years ago | 1 answer | 0

Question

how can I measure the differences between tow diagram?I attached tow diagram.

how can I measure the differences between tow diagram?I attached tow diagram.

3 years ago | 1 answer | 0

Question

how can i negative all rows in a matrix?just rows

how can i negative all rows in a matrix?just rows

3 years ago | 1 answer | 0

Question

hello.can any one tell me the differences between ''shape matching'' and ''shape correspondence'' and ''shape registeration''?

hello.can any one tell me the differences between ''shape matching'' and ''shape correspondence'' and ''shape registeration''?

3 years ago | 0 answers | 0

Question

can anyone tell me which toolbox in Matlab2016 contain function "dtw" ?

can anyone tell me the which toolbox in Matlab2016 contain function "dtw" ?

3 years ago | 2 answers | 0

Question

how can i install a matlab toolbox?

i am using matlab 2015,ineeed a function which is not on matlab2015.it is on matlab 2016.how can i use this function? i really n...

3 years ago | 2 answers | 0

Question

i have a matrix like:A=[9 7 8 4 2 5 1 8 6 12]. i wanna add the first 5 elements .how can I do this?

i have a matrix like:A=[9 7 8 4 2 5 1 8 6 12]. i wanna add the first 5 elements .how can I do this?

3 years ago | 1 answer | 0

Question

i have tow diagram that each of them has 8 maximum point.i want the number of point between each pair of maximum points be the same.how can i do this?i attached both digram with their maximum points

i have tow diagram that each of them has 8 maximum point.i want the number of point between each pair of maximum points be the s...

3 years ago | 0 answers | 0

Question

i have a vector which contain 23 elements.i wanna choose 20 elements among this 23 elements randomly.how can i do this?

i have a vector which contain 23 elements.i wanna choose 20 elements among this 23 elements randomly.how can i do this?

3 years ago | 1 answer | 0

Question

how to down sample a vector?

I have a vector which contain 60 elements. I want to down sample it to have 54 elements.how can I do this?

3 years ago | 1 answer | 0

Question

i need data sets for non rigid binary shapes.can any one tell me some data sets for non rigid shapes?

i am doing some research on binary shape classification. i need a data set which contain non rigid shapes.

3 years ago | 0 answers | 0

Question

is there SVM CLASSIFY on matlab 2015 or we should download it and install it on matlab?

is there SVM CLASSIFY on matlab 2015 or we should download it and install it on matlab?

3 years ago | 1 answer | 0

Question

how can I convert c codes to Matlab code?

hello.i have a C code and I want to convert it in Matlab. i mean i need a compiler to convert C code to Matlab. how can I do it?...

3 years ago | 1 answer | 0