hsb

Sort list of colors by HSV/HSB

由 纵饮孤独 提交于 2021-01-28 01:52:59
问题 I am looking to sort a very long list of colors by their HSV/HSB values. I would like to sort them by Hue, then Sat, then Bright. Really all I need is a way to tell if one color comes "before" or "after" based on that order of HSV since I am just going to make a compareTo() in Java and use a TreeSet to do the ordering. In Java, HSV values are all stored as floats. I am terrible at algorithms like these so any help would be appreciated! 回答1: The brute force way: public final class

Colors (h,s,b) from 360 to 0 and from 0 to (-360) and from (-360) to (-720) and so on

由 ≯℡__Kan透↙ 提交于 2019-12-25 03:31:24
问题 I've got a HSB color problem and don't know how to calculate it in the right way. I've got Hue of a color between 360 and 0 and if i substrate -1 from 0 i get the value -1 and not 360 . I'think i've to do something with modulo to get the right values ?! so my problem is to convert a multiple of a unit to a number between 0 and 360. Could someone help me? 回答1: A negative hue value is equivalent to 360 + value , that means -10 is equivalent to 350. To achieve that behavior do: var val = -10; //

HSB vs HSL vs HSV

由 旧时模样 提交于 2019-12-17 22:18:48
问题 I am making a Color class as a part of a very basic graphics API in c++. So I decided to take a look at Microsoft's .NET framework and noticed that their Color class has functions for HSB. Then I started a research to determine whether I should provide HSB, HSL or HSV or ALL of them in my class. So, I have 3 questions on HSB, HSL, HSV: Is HSB same as HSL? If not, why isn't there an HSBL or even HSBLV? I find many different methods of calculating these values, can someone show me the FASTEST

Is there function to convert UIColor to Hue Saturation Brightness?

由 孤人 提交于 2019-12-17 15:44:11
问题 i can set uicolor with RGB values: [UIColor colorWithRed:0.53 green:0.37 blue:0.11 alpha:1.00]; i can set uicolor with hsb values: [UIColor colorWithHue:0.10 saturation:0.16 brightness:0.13 alpha:1.00]; i also could convert it back to RGB: CGFloat* colors = CGColorGetComponents(Color1.CGColor); But how i can get HSB from uicolor? 回答1: Use the UIColor method: getHue:saturation:brightness:alpha: From the Apple docs: "Returns the components that make up the color in the HSB color space." - (BOOL

Objective-C RGB to HSB

由 a 夏天 提交于 2019-12-13 20:27:30
问题 Let's say I've got the colour FF0000, which is red. Finding a darker colour is easy, I just type maybe CC instead of the FF, but let's say I've got the colour AE83FC, which is a complicated colour, how the heck would I find a lighter or darker version of it automatically? I figured the easy way to do this is to convert my RGB to HSB [Hue, Saturation, Brightness] How would I do that in Objective-C? Let's say I've got a RGB which is: 1.0, 0.0, 0.0. That's red. CGFloat r = 1.0; CGFloat g = 0.0;

Generate a n-color rainbow palette

由 一笑奈何 提交于 2019-12-08 03:40:20
问题 I'm trying to generate a rainbow with 15 different colors with (runnable code here): size(360,100); colorMode(HSB, 360, 100, 100); // Hue in degrees in [0, 360], // saturation/brightness in [0, 100] // like in Photoshop noStroke(); for (int i = 0; i < 15; i++) { fill(i*24, 100, 100); // 24*15 = 360 rect(i*24, 0, 25, 100); } but it doesn't produce a rich 15 rainbow-color palette, instead some colors are missing (vivid yellow for example). Is there a well known algorithm to produce a vivid

How to apply HSB color filters to UIImage

由 霸气de小男生 提交于 2019-12-08 02:27:23
问题 I've been struggling for a few days for a project on UIImage colorization. The idea is that the app will embark a set of images that I will have to colorize with values retrieved from a webservice. Some sort of themes if you wish. The designer I work with gave me a background image on all of his Photoshop values. The first problem is that Photoshop uses HSL and iOS uses HSB. So the first challenge was to translate the values from Photoshop. Photoshop HSL: -28 (range -180 => +180), 100 (range

How to apply HSB color filters to UIImage

由 旧街凉风 提交于 2019-12-06 13:14:23
I've been struggling for a few days for a project on UIImage colorization. The idea is that the app will embark a set of images that I will have to colorize with values retrieved from a webservice. Some sort of themes if you wish. The designer I work with gave me a background image on all of his Photoshop values. The first problem is that Photoshop uses HSL and iOS uses HSB. So the first challenge was to translate the values from Photoshop. Photoshop HSL: -28 (range -180 => +180), 100 (range -100 => +100), 25 (range -100 => +100). Luckily I found some code online, here it is . //adapted from

Generate a n-color rainbow palette

由 ◇◆丶佛笑我妖孽 提交于 2019-12-06 07:22:18
I'm trying to generate a rainbow with 15 different colors with ( runnable code here ): size(360,100); colorMode(HSB, 360, 100, 100); // Hue in degrees in [0, 360], // saturation/brightness in [0, 100] // like in Photoshop noStroke(); for (int i = 0; i < 15; i++) { fill(i*24, 100, 100); // 24*15 = 360 rect(i*24, 0, 25, 100); } but it doesn't produce a rich 15 rainbow-color palette, instead some colors are missing (vivid yellow for example). Is there a well known algorithm to produce a vivid rainbow color palette? To understand what's going on, try creating a program that shows a line for each

Color Theory: How to convert Munsell HVC to RGB/HSB/HSL

由 别来无恙 提交于 2019-12-04 07:39:51
问题 I'm looking at at document that describes the standard colors used in dentistry to describe the color of a tooth. They quote hue , value , chroma values, and indicate they are from the 1905 Munsell description of color: The system of colour notation developed by A. H. Munsell in 1905 identifies colour in terms of three attributes: HUE, VALUE (Brightness) and CHROMA (saturation) [15] HUE (H): Munsell defined hue as the quality by which we distinguish one colour from another. He selected five
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