rgb

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RGB to hex and hex to RGB

How to convert colors in RGB format to hex format and vice versa? For example, conve开发者_如何学Pythonrt \'#0080C0\' to (0, 128, 192).Note: bothversions of rgbToHex expect integer values for r, g and[详细]

2023-02-24 00:52 分类：问答
polaroid filter from UIImage

I am trying to implement some image filters, like polaroid, in iphone. I searched on how to filter an existing UIImage to convert it into a polaroid style and come across this stackoverflow link. Taki[详细]

2023-02-23 02:55 分类：问答
Convert a raw negative rgb int value back to a 3 number rgb value

Ok so I\'m working on a program that takes in an image, isolates a block of pixels into an array, and then gets each individual rgb value for each pixel in that array.[详细]

2023-02-22 04:24 分类：问答
Map rainbow colors to RGB

Suppose I have a class RainbowColorsMapper with the constructor RainbowColorsMapper(int n), where n>=2. Now I want to have continuous mapping of rainbow colors from red to violet which I get using the[详细]

2023-02-21 02:17 分类：问答
how to see if a rgb color is too light

I have an aplication in which the customer chooses a color. I can\'t let this color be too light. Is there a way to see this, to prevent the customer from chosing a color that is too light?[详细]

2023-02-20 09:56 分类：问答
Using numpy and pil to convert 565(16bit-color) to 888(24bit-color)

I must pr开发者_如何学编程eface this, with the fact that I have a working method using bitshift and putpixel, but it is incredibly slow, and I am looking to leverage numpy to speed up the process.I be[详细]

2023-02-19 22:52 分类：问答
Algorithm to check similarity of colors

I\'m looking for an algorithm that compares two RGB colors and generates a value of their sim开发者_如何学Cilarity (where similarity means \"similar with respect to average human perception\").[详细]

2023-02-19 11:41 分类：问答
Random Color Deviation with Normal Distribution

I\'d like to generate a random color, based on an original color and a normal distribution, so I can create a random texture telling the script \"Okay, this is the general color you should be using, b[详细]

2023-02-18 21:59 分类：问答
Why I cannot control intensity of color's components in imshow?

I have the following code: red = [1 255 0; 0 0 0; 0 0 0]; green = [0 0 0; 0 0 0; 0 0 0]; blue = [0 0 0; 0 0 0; 0 0 0];[详细]

2023-02-18 19:02 分类：问答
How to add Hue to a given color programmatically?

I tried to implement a my color editor in Java. It should be a simple software. The user will input color in hexadecimal RGBs, for example: 0xFF00FF. I know how to calculate Hue, Chroma, Saturation an[详细]

2023-02-18 18:29 分类：问答