gis-tools-ts/dist/readers/image/index.js

A collection of geospatial tools primarily designed for WGS84, Web Mercator, and S2.

export * from './decoder.js';
export * from './jpeg.js';
export * from './jpeg2000.js';
export * from './lanczos.js';
export * from './util.js';
/** Gamma value; How displays store RGB values is gamma-corrected for human perception purposes */
export const GAMMA = 2.2;
/**
 * Convert from sRGB (gamma-encoded) to linear space
 * @param n - singular R, G, or B value
 * @returns - linear value
 */
export function sRGBToLinear(n) {
    return Math.pow(n / 255, 1 / GAMMA);
}
/**
 * Convert from linear space to sRGB (gamma-encoded)
 * @param n - singular R, G, or B value
 * @returns - gamma-encoded value
 */
export function lRGBToGamma(n) {
    return Math.pow(n, GAMMA) * 255;
}
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