feat: add color blindness filters

color_effects/color_blind/achromatopsia_color.ts

@@ -0,0 +1,21 @@
+// Copyright 2023 mineejo. All rights reserved. MIT license.
+
+import { Color } from "../../color.ts";
+import { matrixColor } from "../matrix_color.ts";
+
+/**
+ * ### Example
+ *
+ * ```ts
+ * const red = new Color(false, 255, 0, 0);
+ * console.log(achromatopsiaColor(red).components); // [76.24..., 76.24..., 76.24...]
+ * ```
+ */
+export function achromatopsiaColor(color: Color): Color {
+  // deno-fmt-ignore
+  return matrixColor(color, [
+    0.299, 0.588, 0.114,
+    0.299, 0.588, 0.114,
+    0.299, 0.588, 0.114,
+  ])
+}

color_effects/color_blind/deuteranomaly_color.ts

@@ -0,0 +1,21 @@
+// Copyright 2023 mineejo. All rights reserved. MIT license.
+
+import { Color } from "../../color.ts";
+import { matrixColor } from "../matrix_color.ts";
+
+/**
+ * ### Example
+ *
+ * ```ts
+ * const red = new Color(false, 255, 0, 0);
+ * console.log(deuteranomalyColor(red).components); // [204, 65.79, 0]
+ * ```
+ */
+export function deuteranomalyColor(color: Color): Color {
+  // deno-fmt-ignore
+  return matrixColor(color, [
+    0.8, 0.2, 0,
+    0.258, 0.742, 0,
+    0, 0.142, 0.858,
+  ])
+}

color_effects/color_blind/deuteranopia_color.ts

@@ -0,0 +1,21 @@
+// Copyright 2023 mineejo. All rights reserved. MIT license.
+
+import { Color } from "../../color.ts";
+import { matrixColor } from "../matrix_color.ts";
+
+/**
+ * ### Example
+ *
+ * ```ts
+ * const red = new Color(false, 255, 0, 0);
+ * console.log(deuteranopiaColor(red).components); // [159.37..., 178.5, 0]
+ * ```
+ */
+export function deuteranopiaColor(color: Color): Color {
+  // deno-fmt-ignore
+  return matrixColor(color, [
+    0.625, 0.375, 0,
+    0.7, 0.3, 0,
+    0, 0.3, 0.7,
+  ])
+}

color_effects/color_blind/mod.ts

@@ -0,0 +1,9 @@
+// Copyright 2023 mineejo. All rights reserved. MIT license.
+
+export { achromatopsiaColor } from "./achromatopsia_color.ts";
+export { deuteranomalyColor } from "./deuteranomaly_color.ts";
+export { deuteranopiaColor } from "./deuteranopia_color.ts";
+export { protanomalyColor } from "./protanomaly_color.ts";
+export { protanopiaColor } from "./protanopia_color.ts";
+export { tritanomalyColor } from "./tritanomaly_color.ts";
+export { tritanopiaColor } from "./tritanopia_color.ts";

color_effects/color_blind/mod_test.ts

@@ -0,0 +1,92 @@
+// Copyright 2023 mineejo. All rights reserved. MIT license.
+
+import { Color } from "../../color.ts";
+import * as originalFilters from "./mod.ts";
+import { assertEquals } from "../../dev_deps.ts";
+import { truncComponents } from "../../advanced_color_test.ts";
+
+// deno-lint-ignore no-explicit-any
+const filters = originalFilters as any;
+
+// deno-lint-ignore no-explicit-any
+const functionValues: any = {
+  achromatopsiaColor: [
+    [76, 76, 76],
+    [149, 149, 149],
+    [29, 29, 29],
+  ],
+  deuteranomalyColor: [
+    [204, 65, 0],
+    [51, 189, 36],
+    [0, 0, 218],
+  ],
+  deuteranopiaColor: [
+    [159, 178, 0],
+    [95, 76, 76],
+    [0, 0, 178],
+  ],
+  protanomalyColor: [
+    [208, 84, 0],
+    [46, 170, 31],
+    [0, 0, 223],
+  ],
+  protanopiaColor: [
+    [144, 142, 0],
+    [110, 112, 61],
+    [0, 0, 193],
+  ],
+  tritanomalyColor: [
+    [246, 0, 0],
+    [8, 186, 46],
+    [0, 68, 208],
+  ],
+  tritanopiaColor: [
+    [242, 0, 0],
+    [12, 110, 121],
+    [0, 144, 133],
+  ],
+};
+
+Deno.test("color blindness functions correct", async (t) => {
+  const red: Color = new Color(false, 255, 0, 0);
+  const green: Color = new Color(false, 0, 255, 0);
+  const blue: Color = new Color(false, 0, 0, 255);
+  const white: Color = new Color(false, 255, 255, 255);
+  const black: Color = new Color(false, 0, 0, 0);
+
+  for (const filter in originalFilters) {
+    const func = filters[filter];
+
+    await t.step(`${func.name} function correct`, () => {
+      assertEquals(
+        truncComponents(func(red)),
+        functionValues?.[func.name]?.[0],
+        `"truncComponents(func(red))"`,
+      );
+
+      assertEquals(
+        truncComponents(func(green)),
+        functionValues?.[func.name]?.[1],
+        `"truncComponents(func(green))"`,
+      );
+
+      assertEquals(
+        truncComponents(func(blue)),
+        functionValues?.[func.name]?.[2],
+        `"truncComponents(func(blue))"`,
+      );
+
+      assertEquals(
+        truncComponents(func(white)),
+        [255, 255, 255],
+        `"truncComponents(func(white))"`,
+      );
+
+      assertEquals(
+        truncComponents(func(black)),
+        [0, 0, 0],
+        `"truncComponents(func(black))"`,
+      );
+    });
+  }
+});

color_effects/color_blind/protanomaly_color.ts

@@ -0,0 +1,21 @@
+// Copyright 2023 mineejo. All rights reserved. MIT license.
+
+import { Color } from "../../color.ts";
+import { matrixColor } from "../matrix_color.ts";
+
+/**
+ * ### Example
+ *
+ * ```ts
+ * const red = new Color(false, 255, 0, 0);
+ * console.log(protanomalyColor(red).components); // [208.33..., 84.91..., 0]
+ * ```
+ */
+export function protanomalyColor(color: Color): Color {
+  // deno-fmt-ignore
+  return matrixColor(color, [
+    0.817, 0.183, 0,
+    0.333, 0.667, 0,
+    0, 0.125, 0.875,
+  ])
+}

color_effects/color_blind/protanopia_color.ts

@@ -0,0 +1,21 @@
+// Copyright 2023 mineejo. All rights reserved. MIT license.
+
+import { Color } from "../../color.ts";
+import { matrixColor } from "../matrix_color.ts";
+
+/**
+ * ### Example
+ *
+ * ```ts
+ * const red = new Color(false, 255, 0, 0);
+ * console.log(protanopiaColor(red).components); // [144.58..., 142.29, 0]
+ * ```
+ */
+export function protanopiaColor(color: Color): Color {
+  // deno-fmt-ignore
+  return matrixColor(color, [
+    0.567, 0.433, 0,
+    0.558, 0.442, 0,
+    0, 0.242, 0.758,
+  ])
+}

color_effects/color_blind/tritanomaly_color.ts

@@ -0,0 +1,21 @@
+// Copyright 2023 mineejo. All rights reserved. MIT license.
+
+import { Color } from "../../color.ts";
+import { matrixColor } from "../matrix_color.ts";
+
+/**
+ * ### Example
+ *
+ * ```ts
+ * const red = new Color(false, 255, 0, 0);
+ * console.log(tritanomalyColor(red).components); // [246.58..., 0, 0]
+ * ```
+ */
+export function tritanomalyColor(color: Color): Color {
+  // deno-fmt-ignore
+  return matrixColor(color, [
+    0.967, 0.033, 0,
+    0, 0.733, 0.267,
+    0, 0.183, 0.817,
+  ])
+}

color_effects/color_blind/tritanopia_color.ts

@@ -0,0 +1,21 @@
+// Copyright 2023 mineejo. All rights reserved. MIT license.
+
+import { Color } from "../../color.ts";
+import { matrixColor } from "../matrix_color.ts";
+
+/**
+ * ### Example
+ *
+ * ```ts
+ * const red = new Color(false, 255, 0, 0);
+ * console.log(tritanopiaColor(red).components); // [242.25, 0, 0]
+ * ```
+ */
+export function tritanopiaColor(color: Color): Color {
+  // deno-fmt-ignore
+  return matrixColor(color, [
+    0.95, 0.05, 0,
+    0, 0.433, 0.567,
+    0, 0.475, 0.525,
+  ])
+}

color_effects/mod.ts

@@ -6,3 +6,5 @@ export { matrixColor } from "./matrix_color.ts";
 export { mixColors } from "./mix_colors.ts";
 export { subtractColors } from "./subtract_colors.ts";
 export { summarizeColors } from "./summarize_colors.ts";
+
+export * from "./color_blind/mod.ts";