Answered
I am converting a grayscale signature image to thin image but not getting the desired output
It looks like you need to clean up the binary image a little before thinning. This worked for me: bw = im2bw(img,graythr...

oltre 4 anni ago | 0

| accepted

Answered
Function: imfindcircles detects false circles.
Looks like the sensitivity is too high. I reduced the sensitivity from the default (0.85) to 0.8 and that helped get rid of the ...

circa 5 anni ago | 1

Answered
Why does my computer crash when running image processing script files?
This looks like a bug in |imfilter|, but I'll need a little more information to help you with this: * What data type image ar...

circa 5 anni ago | 0

Answered
bwboundaries: Explanation of a example
I assume you are talking about Example 1 in the documentation. I = imread('rice.png'); BW = im2bw(I, ...

circa 5 anni ago | 0

Answered
please help me , what is color segmentation steps
We can guide you better if you give us a specific problem to resolve. In the mean time, you could try out the Color Thresholder ...

circa 5 anni ago | 1

Answered
Threshold value question using otsu method
I haven't read the entire thread above. I'm sure there's a lot of good information there. I take it you are trying to threshold ...

circa 5 anni ago | 0

Answered
How can I use imfindcircles function to find circle centers without sorting
If you mean to say that you'd like |imfindcircles| to also detect even 'weak' circles, than set the |'Sensitivity'| parameter to...

oltre 5 anni ago | 1

Answered
How can I display two images at once?
Use |imshowpair| like Image Analyst suggests and you should be all fine. The following gives you a side-by-side display: ...

oltre 5 anni ago | 8

Answered
how can i apply the sobel operator in horizontal direction?
If you want the edge detected image, you can use the |edge| function as follows: BW = edge(I,'sobel','vertical'); If you...

oltre 5 anni ago | 1

Answered
Is Digit Classification Using HOG Features example only available in the 2014 version?
You're right, the |imageSet| function was not part of the 2013 releases. You should instead use this version of the example ...

oltre 5 anni ago | 0

| accepted

Answered
Question regarding image registration.
I can't make any comments on whether the approach you've used with |cpselect| is reasonable because I can't see the images or th...

oltre 5 anni ago | 0

Answered
Increase edge thickness in binary?
Have a look at the |imdilate| function. Here's a quick example, BW1 = imread('circbw.tif'); BW2 = bwperim(BW1,8); ...

oltre 5 anni ago | 5

| accepted

Answered
i have trained the cascade object detector to detect fists. But now I want to count the number of fists and display. Is there any way using vision toolbox ? please suggest me the steps
If you have already trained a cascade object classifier, you should already have an output XML file containing the classificatio...

oltre 5 anni ago | 1

| accepted

Answered
Color Thresholder app not working in debug
Marco, When the |Color Thresholder| looks for workspace variables, it is referring to the base workspace. Hence it does not fin...

oltre 5 anni ago | 2

| accepted

Answered
Why is imshow() not showing my image correctly?
You should contact Tech Support about this question. I have a feeling it may have to do with the graphics driver, but that's jus...

oltre 5 anni ago | 1

| accepted

Answered
Is there any way to do an operator on a specific region
What you're looking for is the <http://www.mathworks.com/help/images/ref/roifilt2.html |roifilt2|> function.

oltre 5 anni ago | 0

Answered
Difference between the option 'log' and 'zerocross' of function edge?
The |'log'| method is a specific type of zero-crossing edge detector, where the image is filtered with the Laplacian of Gaussian...

oltre 5 anni ago | 0

| accepted

Answered
Trying to pattern match 5 repetitions in 2-d array
Sounds like this is what you're looking for: m = [1 1 1 -1 -1 -1 1 1 -1 -1 -1 -1 1 -1 -1 -1 -1 -1 0 1 -1 -1 1...

oltre 5 anni ago | 0

Answered
Adaptive Multi-Level Threshold for image
Have you tried using <http://www.mathworks.com/help/images/ref/multithresh.html |multithresh|> after |adapthisteq|? |multithresh...

oltre 5 anni ago | 0

Answered
Calculating the Minimum and The Maximum of a Slidig Window
What do you mean toolbox-free? |colfilt| is also from the Image Processing Toolbox. Can you use |ordfilt2| localMaxImage = ...

oltre 5 anni ago | 0

Answered
"Non-constant or empty expression" error when generating code using imfilter
Could you say which release and platform you are working with? I'm not able to see this.

oltre 5 anni ago | 0

Answered
How to find the intensity percentage in a gray scale image?
If |I| is a |uint8| image, then |max(I(:))| will be a |uint8| value and multiplying that by .995 will mean its still |255|. You ...

oltre 5 anni ago | 0

Answered
Generating C\C++ code for regionprops()
Vimal, that's right. At the moment, |regionprops| does not support code generation. We have noted this as a possible future enha...

oltre 5 anni ago | 1

Answered
How to resize an image for face detection?
The |vision.CascadeObjectDetector| does not rely on you providing an image at a particular size. That warning is only relate...

oltre 5 anni ago | 0

| accepted

Answered
hough peaks not symmetric for rectangle
The symmetry should hold only for rectangles centered at the origin. I just skimmed the paper, but it seems to describe a techni...

oltre 5 anni ago | 0

| accepted

Answered
imwrite fails for small images less than 64 rows high
This looks like a bug. Please contact MathWorks Tech Support by creating a Service Request: <http://www.mathworks.com/sup...

circa 6 anni ago | 0

| accepted

Answered
how do I solve matlab feature mismatching problem?
Take a look at the examples on this page. Part of the workflow described is feature matching: <http://www.mathworks.com/help/...

circa 6 anni ago | 1

Answered
Extract text from video by frames - how do?
If you've got R2014a and the Computer Vision System Toolbox, you can use the |ocr| function. <http://www.mathworks.com/help/...

circa 6 anni ago | 0

Answered
What is meant by histogram thresholding? Is there any direct matlab command to implement it?
I don't think there is a direct function that implements the balanced histogram thresholding approach (I assume that's what you ...

circa 6 anni ago | 0

Answered
Error message in Intensity-Based Automatic Image Registration
|imregister| expects the 2-D images to be in grayscale. It does not use color information as part of the registration. If you...

circa 6 anni ago | 1

Load more