DominantColor | Find dominant color in picture using K Means Clustering | Computer Vision library
kandi X-RAY | DominantColor Summary
kandi X-RAY | DominantColor Summary
Find dominant color in picture using K Means Clustering
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Top functions reviewed by kandi - BETA
- K - means clustering
- Find the cluster labels for each cluster
- Perform k - means clustering
- Calculate the centroids for each cluster
- Calculate the eclidean distance between two points
- Tries to paint a histogram
- Find the histogram of the given class
- Generate a bar chart for each centroids
DominantColor Key Features
DominantColor Examples and Code Snippets
Community Discussions
Trending Discussions on DominantColor
QUESTION
I am doing an image processing project using Windows Forms (c#). You can see the design of my application below. What does this app do : take the original image, create a copy and modify the copy.
My app is working well but, if I process the same original image another time without closing the app, I get an error due to (I think) the display of the modified image. I think that the display on the bottom right corner uses the resources of the image and, when I try to modify it again, the system considers that the image is already used by another program so it can't be modified.
So my question is : "How can I stop using the modified image if the user clicks on PROCESS again ?" I tried to use the .Dispose() method but it didn't work.
Code of the c# function linked to the PROCESS button :
...ANSWER
Answered 2020-Oct-07 at 15:10The basic rule is that all objects you create that implements IDisposable
need to be disposed. When writing winforms apps all controls added to a forms are disposed when the form is disposed. But whenever you change things you might need to handle disposal yourself.
For example:
QUESTION
I am trying to fetch color from image using palette_generator. i am passing image to method to generate palette so i can fetch dominant color from it. but when i try to fetch that palette color the error occurs as " Timeout occurred trying to load from AssetImage(bundle: null, name: "1.jpg") " and log cat shows " Unable to load asset: 1.jpg "
But that image is loading perfectly in the build method if i load the image using Image.asset().
NOTE - There is no issue of flutter asset folder linking
here is my code
...ANSWER
Answered 2020-Jul-03 at 18:54The problem is that at your _updatePaletteGenerator
the path that you provide to Image.asset() is wrong. You have to give 'assets/images/1.jpg'
QUESTION
Working in Node/Express, I was trying to get the npm package color-thief to grab the dominant color from an image, and it failed because "image given has not completed loading".
The image was, again, local, so it shouldn't have had this particular problem. And besides that, color-thief
returns a promise, and I was using async/await, so it should have waited however long it took for the image to load instead of throwing an error.
Below is my SSCCE code:
...ANSWER
Answered 2020-Jan-31 at 17:57The issue turned out to be that the plugin apparently does not support .webp
files.
It works fine with .jpg
and .png
, though the Documentation (which isn't easy to get to) doesn't explicitly state what file types it does/does not support.
I've submitted a feature request on Github to either add support for webp or update the documentation with an explicit list of supported filetypes, but the author states at the very bottom of his blog regarding the project:
"In the short term I'm not planning on doing any more work on the script."
Just figured I would try to save someone else using this in the future some headache and time
QUESTION
I have a collection dinosaurs
with documents of this structure:
doc#1:
ANSWER
Answered 2019-Jul-17 at 23:29Cloud Firestore doesn't support querying arrays by ranked index. The only way you can query an array is using an array-contains type query.
What you could do instead is organize your colors using maps where the color is the key and their rank is the value:
QUESTION
// Get the JSON response.
string contentString = await response.Content.ReadAsStringAsync();
Console.WriteLine(contentString);
var rs = Newtonsoft.Json.Linq.JToken.Parse(contentString);
Result rst = JsonConvert.DeserializeObject(contentString);
//Here i need to get the first value in the description as it appears to be a list
var firstValue= rst.description;
//And also a value from caption
var captionValue = rst.Caption
public class Result
{
public Category[] categories { get; set; }
public Description description { get; set; }
public string requestId { get; set; }
public Caption caption { get; set;}
public Metadata metadata { get; set; }
public Color color { get; set; }
}
public class Description
{
public string[] tags { get; set; }
public Caption[] captions { get; set; }
}
public class Caption
{
public string text { get; set; }
public float confidence { get; set; }
}
public class Metadata
{
public int width { get; set; }
public int height { get; set; }
public string format { get; set; }
}
public class Color
{
public string dominantColorForeground { get; set; }
public string dominantColorBackground { get; set; }
public string[] dominantColors { get; set; }
public string accentColor { get; set; }
public bool isBWImg { get; set; }
}
public class Category
{
public string name { get; set; }
public float score { get; set; }
}
}
JSON DATA:
{
"categories": [
{
"name": "abstract_",
"score": 0.00390625
},
{
"name": "others_",
"score": 0.0234375
},
{
"name": "outdoor_",
"score": 0.00390625
}
],
"description": {
"tags": [
"road",
"building",
"outdoor",
"street",
"night",
"black",
"city",
"white",
"light",
"sitting",
"riding",
"man",
"side",
"empty",
"rain",
"corner",
"traffic",
"lit",
"hydrant",
"stop",
"board",
"parked",
"bus",
"tall"
],
"captions": [
{
"text": "a close up of an empty city street at night",
"confidence": 0.7965622853462756
}
]
},
"requestId": "dddf1ac9-7e66-4c47-bdef-222f3fe5aa23",
"metadata": {
"width": 3733,
"height": 1986,
"format": "Jpeg"
},
"color": {
"dominantColorForeground": "Black",
"dominantColorBackground": "Black",
"dominantColors": [
"Black",
"Grey"
],
"accentColor": "666666",
"isBWImg": true
}
}
...ANSWER
Answered 2018-Jul-16 at 07:59The best option here would be to create a model that will represent the response and then deserialize the response into an instance of the model using JsonConvert.DeserializeObject
of Newtonsoft Json.Net. It will be much more OOP-like approach, easier to maintain and extend.
See an example here.
QUESTION
here is my code
...ANSWER
Answered 2019-Jan-10 at 05:59The problem is that you did not define constructor properly. Constructor is __init__
(double underscore) not _init_
(single underscore). Just change it and it should solve your problem
QUESTION
I have a Json file with couple of fields and I have some problems searching for specific fields.
This is the Json file(I cut it short since the original is huge):
...ANSWER
Answered 2018-Nov-20 at 21:18You can use the following Linq query to pull the dID values for the Round shapes. However the JSON is not in a correct format.
QUESTION
So my code is hopefully kinda straightforward (still learning don't hate me), I use a package to get the colorpallete of the image I feed it to. And since I need to wait to actually make it happen I need to wait when it's done.
Well my problem is I use a then in my then, and it feels really dirty and probably is not the right way to do this. Since it's a school project I don't really mind performance on first but if somebody can give me some advice how to make this a little more usuable. And I know I return it to the next promise it doesn't make sense since it's out of the other chain
I hope I kinda said it the right way haha. And if there are some articles I missed how to solve this would be great also!
...ANSWER
Answered 2018-Nov-01 at 18:45If you return a Promise inside a .then call it will be added to the Promise chain allowing you to continue chaining calls at the top level.
QUESTION
I'm currently using the Computer Vision API to get image dimensions and also to detect color & adult content.
The API returns back the correct metadata containing the width, height, and format, but all the values for Color or Adult Content come back as default values (zeros/null/false/"None").
If it makes any difference, I'm calling the service in US West which is listed as having these features enabled. Also, I specify that I want these features in the request, which is why I receive the objects for these two features.
How do I get this information to be populated accordingly?
Example request I just used with today's Bing image. I'm using the Microsoft.Azure.CognitiveServices.Vision.ComputerVision
package from nuget which contains the AnalyzeImageAsync
method.
ANSWER
Answered 2018-Jun-18 at 17:02The JPEG image is not, strictly speaking, correctly encoded. Specifically the EOI
(end of image) marker is missing. The image should end with FF D9
, whereas your image is ending simply in FF
. This is why the image classifier is returning default values instead of true values.
While a case could be made that either the (a) return response is deceptive, or (b) the API should have returned a 400 Bad Request, it is probably more beneficial for you to try and understand how the image got truncated by a byte.
QUESTION
Here is the block to analyse:
...ANSWER
Answered 2017-Sep-08 at 13:04To me it looks like you're trying to parse JSON. You should use the JSON parser for the second element of the array. You'll get back either list or dictionary. Then you'll be able to extract data from "description" key has.
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Install DominantColor
You can use DominantColor like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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