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Ashish Uthama


The MathWorks

1058 total contributions since 2008

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bigTiffWriter
A basic image adapter to write Big TIFF files.

3 months ago | 7 downloads |

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Submitted


nc3to4
Create a NetCDF4 classic model file from an existing NetCDF 3 (classic) file.

3 months ago | 0 downloads |

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Answered
Start+count exceeds dimension bound (NC_EEDGE)
The |ncread| call in you |ncwrite| call returns the full variable, did you mean to use the variable |h| instead of the function ...

10 months ago | 0

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Answered
Repeat snake processing (loop) on the same image in order to detect several features
If you have a newer version, give the <http://www.mathworks.com/help/images/image-segmentation-using-the-image-segmenter-app.htm...

1 year ago | 0

Answered
Generate C Code from MATLAB Coder
Look at <http://www.mathworks.com/help/coder/ug/package-code-for-other-development-environments.html?searchHighlight=PackNGo pac...

1 year ago | 0

Answered
About quantization of image
_"i want images for all 16 levels"_ I interpreted it as - quantize to 16 levels and give me a mask for each of those levels. ...

1 year ago | 0

Answered
Finding the Angle of Intersection of elements from two images
Attached an image (generated by |imshowpair|). <</matlabcentral/answers/uploaded_files/33168/1.png>> A rough off the top s...

1 year ago | 1

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Answered
Load time from netcdf file and retain the 'Hour' value
Instead of time = double(netcdf_time/24 + datenum('1900-01-01 00:00:00')); (netcdf/24 is still happening in int32, hence ...

1 year ago | 0

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Answered
how can use more than one function in batch processing app that embedded in matlab2015 ?
Unfortunately not. One cludgy alternative if you only want to visualize - use |imfuse| to fuse the two outputs. functi...

1 year ago | 0

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Answered
Return value of rgb2gray
It returns an MxN numeric array.

1 year ago | 0

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Answered
Best tool for analysing/altering netcdf data (beyond read-only)
There are more functions in the |ncread| family - Have a look at all of them <http://www.mathworks.com/help/matlab/network-com...

1 year ago | 1

Answered
how can do a process on some images in a loop process while these images are not like a sequence?
Try the <http://www.mathworks.com/help/images/batch-processing-using-the-image-batch-processor-app.html |imageBatchProcessor|> a...

1 year ago | 1

Answered
combine 2 netcdf files into one
|ncwriteschema| only writes the 'schema',i.e things like variable and dimension definitions. You still need to follow this with ...

1 year ago | 0

Answered
Why the values of perimeter calculated using regionprops for Matlab 2010 and 2015 differ?
The <http://www.mathworks.com/help/images/release-notes.html release notes> R2014a appears to explain that the newer value is mo...

1 year ago | 1

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Answered
Problem with imshow command
Which |imshow| are you using? line 25 of the toolbox version does not appear to have an |fopen|. Try |which -all imshow|. You...

1 year ago | 0

Answered
Why do I need to add some addtitional files for the generated c code like "libmwbwpackctbb.h"?
Some of these functions use a <http://www.mathworks.com/help/images/list-of-supported-functions-with-usage-notes.html library> t...

1 year ago | 2

Answered
Use cell array to get inputs
The new <http://www.mathworks.com/help/images/batch-processing-using-the-image-batch-processor-app.html |image batch processor|>...

1 year ago | 0

Answered
How to show a sequence of images
You could try using the <http://www.mathworks.com/help/images/batch-processing-using-the-image-batch-processor-app.html |image b...

1 year ago | 0

Answered
Scan through an image to detect the mid points of 2 grey regions
See if this gives you any ideas: %% im = imread('/tmp/t.png'); imtool(im); % RGB? gray scale im = rgb2gray(...

1 year ago | 0

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Answered
How to apply pixel shift to individual pixels in image file?
Have a look at the displacement field syntax of <http://www.mathworks.com/help/images/ref/imwarp.html#inputarg_D |imwarp|>. Depe...

2 years ago | 2

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Answered
Why am I unable to call the ncread function to read NetCDF files?
Pedro, you might not have the latest version of MATLAB. |ncread| was first shipped with R2011a. If possible, consider upgrading....

2 years ago | 0

Answered
How to edit a particular variable in a netcdf file?
You could use the <http://www.mathworks.com/help/matlab/ref/ncwrite.html ncwrite> function to overwrite the variable.

2 years ago | 0

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Answered
Take coordinate data from struct, throw it into an array. Why is this hard to find info about?
Does this help? (If not, use this example code to show how you want your Centriod variable to look like) stats = regionpro...

2 years ago | 0

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Answered
NetCDF file grid box extraction
I got this far.. then realized no exact match exists for that lat/lon. So, conceptually, what do you want to do? Pick a point cl...

2 years ago | 0

Answered
Image area calculation and edge detection...
If you have the latest version, try out the <http://www.mathworks.com/help/images/image-segmentation-using-the-color-thesholder-...

2 years ago | 0

Answered
How to save a Tiff using signed values with LibTiff library.
You need one extra tag: intFinalImage = int16(magic(10)); tiffFile = 't.tif'; t = Tiff(tiffFile,'w'); %-------...

2 years ago | 1

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Responded


Re: In Matlab 2014b, the edge function (image processing toolbox) is not working ?
Did you figure this out? Was this a fresh install? (Both MATLAB and all its toolboxes?)

2 years ago | 4676 views

Answered
How do I write a netcdf file that ncdump and cdo/GrADS will understand?
James - my guess is that the other utilities you are using are based on an older version of the NetCDF library - they do not rec...

2 years ago | 2

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Answered
Memory Usage and block proc
blockproc will not read the full image, it ought to only read one tile each. However, since your file system is serial, the fina...

2 years ago | 0

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