1 files changed, 120 insertions, 0 deletions

diff --git a/src/main/java/Color.java b/src/main/java/Color.java
new file mode 100644
index 0000000..4597b26
--- /dev/null
+++ b/src/main/java/Color.java
@@ -0,0 +1,120 @@
+/**
+ * @author Pacien TRAN-GIRARD
+ * @author Timothée FLOURE
+ */
+public final class Color {
+
+    /**
+     * Returns red component from given packed color.
+     *
+     * @param rgb 32-bits RGB color
+     * @return a float between 0.0 and 1.0
+     * @see #getGreen
+     * @see #getBlue
+     * @see #getRGB(float, float, float)
+     */
+    public static float getRed(int rgb) {
+        // TODO getRed
+        return 0.0f;
+    }
+
+    /**
+     * Returns green component from given packed color.
+     *
+     * @param rgb 32-bits RGB color
+     * @return a float between 0.0 and 1.0
+     * @see #getRed
+     * @see #getBlue
+     * @see #getRGB(float, float, float)
+     */
+    public static float getGreen(int rgb) {
+        // TODO getGreen
+        return 0.0f;
+    }
+
+    /**
+     * Returns blue component from given packed color.
+     *
+     * @param rgb 32-bits RGB color
+     * @return a float between 0.0 and 1.0
+     * @see #getRed
+     * @see #getGreen
+     * @see #getRGB(float, float, float)
+     */
+    public static float getBlue(int rgb) {
+        // TODO getBlue
+        return 0.0f;
+    }
+
+    /**
+     * Returns the average of red, green and blue components from given packed color.
+     *
+     * @param rgb 32-bits RGB color
+     * @return a float between 0.0 and 1.0
+     * @see #getRed
+     * @see #getGreen
+     * @see #getBlue
+     * @see #getRGB(float)
+     */
+    public static float getGray(int rgb) {
+        // TODO getGray
+        return 0.0f;
+    }
+
+    /**
+     * Returns packed RGB components from given red, green and blue components.
+     *
+     * @param red   a float between 0.0 and 1.0
+     * @param green a float between 0.0 and 1.0
+     * @param blue  a float between 0.0 and 1.0
+     * @return 32-bits RGB color
+     * @see #getRed
+     * @see #getGreen
+     * @see #getBlue
+     */
+    public static int getRGB(float red, float green, float blue) {
+        // TODO getRGB
+        return 0;
+    }
+
+    /**
+     * Returns packed RGB components from given grayscale value.
+     *
+     * @param red   a float between 0.0 and 1.0
+     * @param green a float between 0.0 and 1.0
+     * @param blue  a float between 0.0 and 1.0
+     * @return 32-bits RGB color
+     * @see #getGray
+     */
+    public static int getRGB(float gray) {
+        // TODO getRGB
+        return 0;
+    }
+
+    /**
+     * Converts packed RGB image to grayscale float image.
+     *
+     * @param image a HxW int array
+     * @return a HxW float array
+     * @see #toRGB
+     * @see #getGray
+     */
+    public static float[][] toGray(int[][] image) {
+        // TODO toGray
+        return null;
+    }
+
+    /**
+     * Converts grayscale float image to packed RGB image.
+     *
+     * @param channels a HxW float array
+     * @return a HxW int array
+     * @see #toGray
+     * @see #getRGB(float)
+     */
+    public static int[][] toRGB(float[][] gray) {
+        // TODO toRGB
+        return null;
+    }
+
+}