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Ashish Uthama

Last seen: 2 days ago Active since 2011

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Answered
Read in part of large histological (ndpi) file
NDPI look like TIFF file, but unfortunately, they dont stick to the spec. It internally stores the full res image likely compres...

2 months ago | 0

Answered
Blocking pixel label data for semantic segmentation DL training
Have not tried this - but instead of a pixelLabelDatastore, could you try to use another blockedImageDatastore to read the label...

3 months ago | 0

Answered
How can I read a single band, from a multi-band GeoTiff file?
Please try the 'Bands' Name-Value argument in readgeoraster.

5 months ago | 0

Answered
Regionprops handling of big images
@Marcio Teixeira - what is the maximum size of an individual 'region' that you are trying to analyze? If its small enough w.r.t ...

1 year ago | 1

Answered
validation function and input size change for mask r cnn
Thanks for posting the image! You could try the Cellpose add-on and explore different models to see if some of the canned ones ...

1 year ago | 0

Answered
pixel intensity gradient makes object detection by binary image segmentation fail
You could consider using cellpose (available in 23b): I see that you used a cropped image. If you have a larger image, you c...

1 year ago | 0

Answered
Machine learning methods to segment cells
In 23b, you could try using the Cellpose add-on:

1 year ago | 0

Answered
Blocked images larger than a certain size will not render in Image Labeler
Thanks for sharing the blockedImage representation - This is a JPG file. Which means there is really no way to do blocked IO (i....

1 year ago | 1

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Answered
imageDatastore for volumetric images
blockedImage cannot convert the slices to a volumetric block on its own unfortunately! blockedImage is useful when you want to b...

1 year ago | 0

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Answered
Divide Image into Overlapping blocks and save it
input image size=2084 by 2084, output image sizes should be 2084 by 1042% with 50% overlapping Here is some sample code: im ...

2 years ago | 1

Answered
Writing multilevel tiff from PNGs using blockedImage and setBlock
Unfortunately, its not easy to write to two different sub-directories in a TIFF file at the same time - hence the error. From y...

2 years ago | 0

Answered
How to delete level(s) from a blockedImage object?
I couldnt easily find info about the .SCN format, but since it looks like the default construction syntax works - I assume its s...

2 years ago | 0

Answered
How do I submit a algorithm with code to MATLAB to include the same in MATLAB image processing tool box?
Anand, like Rik suggested - I would recommened creating a File Exchange (FEX) submission. Do remember that adding documentatio...

2 years ago | 0

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Answered
How to show Tiff stacks
It would help to clarify the nature of your input files (Folder of tiffs? One tiff file with multiple IFD/s? Or one tiff file wi...

2 years ago | 0

Answered
Matlab only opens first frame of multi-page tiff stack
MATLAB R2020b has tiffreadVolume which supports non-BigTIFF volumes, greater than 4GB, created by ImageJ.

2 years ago | 0

Answered
How to run matlab coder generated code in serial / How to tell matlab coder not to use tbb libraries
Would you please try starting MATLAB with -singleCompThread on the session that is generating the code and check if that works f...

4 years ago | 0

Answered
Inverse of a projective transformation doesn't work with imwarp
Try this: I = imread('cameraman.tif'); imshow(I) tform = projective2d([0.96119642,-0.44830978,-0.00025835048; ...

6 years ago | 1

| accepted

Answered
unit test in image segmentation
Maia, The stackoverflow link you found has a lot of relevant detail, especially the one from user "jilles de wit". I would c...

6 years ago | 3

| accepted

Submitted


bigTiffWriter
A basic image adapter to write Big TIFF files.

8 years ago | 4 downloads |

Submitted


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

8 years ago | 2 downloads |

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 ...

8 years 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...

9 years 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...

9 years 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. ...

9 years 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...

9 years 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 ...

9 years ago | 7

| accepted

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...

9 years ago | 0

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

9 years 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...

9 years ago | 1

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