How can change amplitude value in image using opencv?

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How to solve "cannot find -ldl" error in CrossCore Embedded Studio 2.8.1?

Hello, Auto generation C code from MATLAB simulink 2016b which is run on CroosCore Embedded Studio 2.8.1, error is occur like "cannot find -ldl". I have created Cross code project and source code...

10 November 2018 8,858 0 View

How does one multiply two different size of matrices?

I am registered two images. For that, I stored images in matrix. Then I found inverse of one matrix which multiply with 1st image matrix. For multiplicaiton, first matrix's column must same with...

08 September 2014 4,420 5 View

What is relation between homography transformation and perspective transformation?

I have found perspective transformation matrix(3x4 of extrinsic matrix is [R\t] or 3x3 only R matrix) from camera intrinsic and extrinsic parameters and homography transformation matrix(3x3 from...

01 January 1970 7,022 0 View

How can add JPEG or ADPCM noise in an image using opencv?

To add aperiodic structure noise in an image, how can I add JPEG or ADPCM noise in an image using opencv?

01 January 1970 2,710 0 View

How to use code to extract FAST, FFME, BRISK, KAZE/AKAZE for opencv 2.4.9/13?

Hello all, How to use opencv/source/modules/features2D/ folder FAST, BRISK etc. files are stored. How to use in code to extract features and matching points? I need opencv code for FFME, FAST,...

01 January 1970 5,459 0 View

Weak DAPI staining after immunohistochemistry - how to improve?

After immunohistochemistry of previously fixed in PFA and EtOH and then frozen 20 μm sections of zebrafish brain, DAPI staining is very weak (right) compared to the same sections stained without...

05 August 2024 9,637 2 View

Dirty and clean?

Hi everyone I need a file with a dirty and clean potato image

04 August 2024 7,199 4 View

Hello, regarding Mxene 2D titanium carbide?

I fabricated Ti3C2Tx using concentrated HF 40%, I plot an XRD as attached image below.. please let to know if I obtained it or not.

02 August 2024 6,789 4 View

IHC profiler in image j software. has anyone used it to quantify nuclear DAB positivity?

Dear researchers. I tried using the IHC PROFILER in image j to quantify nuclear DAB staining. I followed the instructions in the original article by "Varghese F, Bukhari AB, Malhotra R, De A...

29 July 2024 2,229 0 View

What is the relationship between the threshold voltage and the device's noise performance, particularly in terms of flicker noise and thermal noise?

The threshold voltage (Vth) of a MOS device plays a crucial role for its operation. At the same time, noise is an intrinsic factor. So how noise (flicker or thermal) change with the change in...

29 July 2024 3,246 0 View

While using the IHC PROFILER plugin in image j software, to quantify the epithelial cytoplasmic DAB staining do you crop remove the stromal tissue?

My question pertaining to the DAB staining in cytoplasm of human oral squamous cell carcinoma tissue. When quantifying the epithelial cancer cells do we have to crop remove the stromal tissue?...

29 July 2024 2,682 6 View

What is the relationship between protein structure and N or C terminal tagging choosing?

I want to do 2,3-butanediol dehydrogenase(BDH) enzyme purification to confirm its activity for 2,3-butanediol. Before that, I need to confirm which N or C terminal tagging is better for enzyme...

28 July 2024 366 3 View

Why in 2D image created by discovery studio 2021, the halogens appear as alkyl group?

In my molecule there is Chloro group at 2-position of phenyl ring, but in 2D image it appears as methyl showing no interaction.

28 July 2024 734 0 View

Why is there a significant edge deviation in radar point cloud and camera registration?

The above are manually labeled extrinsic matrices based on the first image It can be seen that the projection error at the edge is large, while the error at the center is small. What could be the...

23 July 2024 7,479 3 View

How to estimate a protien's size using Chimera or PyMol? how correct this estimated can be?

I need to know the approximate size of my target protein for Negative-stain EM. I have an alpha-fold predicted structure of the protein. I do not see any turtorial on internet for estimating the...

21 July 2024 5,732 3 View