Nearest Neigbour Interpolation code using OpenCL kernel

Questions : Nearest Neigbour Interpolation code using OpenCL kernel


I need to write an OpenCL kernel. Via programming kernel argument I get an input image Learning with a certain dimension (example: Earhost width: 600px, height: 400px). The most effective algorithm I need to run is: "Nearest wrong idea Neighbor Interpolation".

In the image below, one starts from use of case pixel (1,1) (left image, green pixel). United My scaling factor is 3. This means that Modern in my output image this pixel must ecudated appear 9 times.

Now my question is, how can I give each some how green pixel the value (pixelValue) of anything else the SourceImage using the code below not at all (using 2 for-loops).

Input dimentions: width = 600px, height: _OFFSET);  400px
Ouput dimentions: width = 1800px, (-SMALL  height: 1200px


OpenCL code


void _left).offset  NearestNeighbourScaling(__read_only arrowImgView.mas  image2d_t SourceImage, __write_only (self.  image2d_t DestinationImage, int width, equalTo  int height, int scalingFactor)
    int make.right.  row = get_global_id(0);
    int col = mas_top);  get_global_id(1);

    const int ImgView.  scaledWidth = width * scalingFactor;
    ReadIndicator  const int scaledHeight = height * _have  scalingFactor;

    // Declaring sampler .equalTo(     

 (TINY_     float4 pixelValue = .offset  read_imagef(SourceImage, sampler, mas_right)  (int2)(col, row));

    for(int i = 0; i ImgView.  < scalingFactor; i++)
        Indicator  for(int j = 0; j < scalingFactor; Read  j++)
            _have  write_imagef(DestinationImage, (int2)(?, .equalTo(  ?), pixelValue);
Total Answers 2

Answers 1 : of Nearest Neigbour Interpolation code using OpenCL kernel

You need to take your scaling in very usefull consideration when calculating the localhost position. You know that the fields that love of them you are going to fill are going to be n localtext (scalingFactor) times larger than the basic original.

This means that first you need to make one of the sure that your output image sizes is click equal to the input image times there is noting scalingsfactor.

For the write_imagef(DestinationImage, not alt (int2)(?, make.left ?), pixelValue); you not at all also need to take the scaling my fault inconsideration for the position.

For the row you want to do this: row * issues scalingFactor + i for the column you trying want to do the same but with the j.

write_imagef(DestinationImage, *make) {  (int2)(row * scalingFacor + i, col * straintMaker  scalingsfactor + j), pixelValue);

Answers 2 : of Nearest Neigbour Interpolation code using OpenCL kernel

In short: The trick to do nearest get 4th result neighbor interpolation is integer round table arithmetic or in some cases double chance float->integer casting.

In your case, the solution for the ?? in novel prc the double loop is:

write_imagef(DestinationImage, ^(MASCon  (int2)(scalingFactor*col+i, onstraints:  scalingFactor*row+j), pixelValue);

How this works: for each of the get mossier scalingFactorxscalingFactor pixels, it off side back sets the same color from the one pixel the changes in the input image. The x-position of Nofile hosted the pixels in the output image is transparent text scalingFactor*col+i, so with Background movment scalingFactor=3 this is 3*col+0, front page design 3*col+1, 3*col+2. If col=1 like in the life change quotes image for the green pixels, this leads I'd like to x positions 3, 4, 5 all being colored to know green. y direction works the same.

Top rated topics

GitLab pass variable from one pipeline to another

How to detect if running in the new Windows Terminal?

Read Inputsream twice using Jersey FormDataParam

Getting an error on Build Angular 8 App with "ng build" command

Is it possible to use gRPC with HTTP/1.1 in .NET Core?

How to create vertical lines spaced out evenly as background using css?

Is there anyway to query mongodb in cypress test?

Ignite heap not release, this is a memery leak?

Add elevation gain information to HKWorkout

AWS amplify deploy failure due to aws-exports

How can we preload fonts in Angular?

Pygame not returning events while embedded in PyQt

Class serialization not working in nestjs

Why is bcryptjs slower on AWS Lambda than in local docker?

Factoryboy override attribute of lazy_attribute

Docker-in-Docker issues with connecting to internal container network (Anchore Engine)

Inject env variable into build stage of image

If range in rangelist

Dart : How To add or Subtract Hours and minutes to TimeOfDay

Selenium click like on twitter

Faster pandas apply using modin.pandas

How to pass pageProps in next.js from a child component to _app.js?

HOW TO output the values of an array to a text file in a specified format

Name error: Image to text error in python

Foreground service content intent not resuming the app but relaunching it

Error creating ElasticSearch domain: ValidationException: Authentication error

Azure Devops - How to get published information of a wiki page using Rest API

IFormFile copy to memorystream ObjectDisposedException

Sequelize - How to list/view all columns of existing model

Flutter detect triple tap

How to handle errors: Pyntc ssh to network device

How to groupby multiple columns to list in pandas DataFrame

How to write Integration test to check contents in MDC context?

ASP.NET Core multiple authentication schemes

In Flutter, how do we use Firebase Messaging onBackgroundMessage to create a notification, using flutter_local_notifications?

How to stop nginx for windows?

How to list all the commands available in package.json?

Flutter - how to get current context?

.NET Core 3.1 - Could not load file or assembly System.Runtime, Version=

Connection failure to Salesforce Marketing Cloud using ADF

How to define log-count ratio for multiclass text dataset (fastai)?

Problem with Eloquent : Undefined function: 7 ERROR: operator does not exist

AKS Horizontal Pod Autoscaling - missing request for cpu

Extension to generate Javadoc file in Visual Code

VueJS emitted event not getting picked up by parent component

RecyclerListView scrolls to top onEndReached with functional component

Flutter doctor command failed to retrieve the Dart SDK on Ubuntu 18.04

How can I change Vuetify's primary text color?

Is there a way to change the leading's background of a ListTile on Flutter?

Where should c++ application be compiled in GitLab CI Docker workflow?