![]() Note: these three plug-ins all draw pictures to canvas to obtain picture data. Js focuses on extracting and classifying images into different colors, as shown in the sample, which can be dark, light, or prominent, while rGBaster is the best way to extract theme colors. In the preliminary test, the color extracted by rGBaster was the closest, but in some cases the deviation was a little far in the project test. Let's take a look at the horizontal comparison The above three samples are the results obtained from the same picture. If (swatches.hasOwnProperty(swatch) swatches)Ĭonsole.log(swatch, swatches.getHex()) Copy the code The project address use const img = document.querySelector( 'img') Js is a JavaScript port from the awesome Palette class in the Android support library. It must be introduced first, and then code const img = document.querySelector( 'img') // const img = '' PaletteSize: 30, // Exclude: [lors (img, // var color = new colorThief () colorThief.getPalette( sourceImage, 8) Copy the code The results ofĮxtract a prominent color from the image. Use K-means to find the dominant colors Detect the image’s RGB from matplotlib import image as img image img.imread('./image.jpg') image. Photo by Suryaansh Maithani on Unsplash The process is simple: 1. This is a small script that can extract the primary and secondary colors of an image. In this article, I will use K-means for the RGB values clustering to find the color themes through nature images. Next, we will introduce several js plug-ins for color extraction 1.rgbaster.js Specific look at these two picture theme color extraction algorithm summary image theme color extraction algorithm The general algorithms for color extraction are these After solving the cross-domain problem (see the cross-domain issues here for specific methods), the next problem is how to extract the theme color. The first thing that comes to mind is to draw the canvas and use getImageData to extract data and then analyze to get the theme color, because the QQ music API encountered cross-domain problems. When making music Webapp, I was amazed by the playing interface of a local music player (soft listen) of Tencent (as shown below), so I decided to 'copy' it. To get the corresponding result in colorgram.Posted on March 23, 2023, 5:35 a.m. In actuality, though, the colors are only sorted by hue (as of colorgram.js 0.1.5), while saturation and lightness are ignored. Something the original library lets you do is sort the colors you get by HSL. Color.proportion - The proportion of the image that is in the extracted color from 0 to 1, e.g.Color.hsl - The color represented as a namedtuple of HSL from 0 to 255, e.g.Color.rgb - The color represented as a namedtuple of RGB from 0 to 255, e.g.colorgram.ColorĪ color extracted from an image. The function will return a list of number_of_colors Color objects. ![]() image may be either a path to a file, a file-like object, or a Pillow Image object. s colorgram.extract(image, number_of_colors)Įxtract colors from an image. 0.34 # RGB and HSL are named tuples, so values can be accessed as properties. # colorgram.extract returns Color objects, which let you access # RGB, HSL, and what proportion of the image was that color. Import colorgram # Extract 6 colors from an image.
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