Chameleon Scarf Code

#include <Adafruit_NeoPixel.h>
#include <Adafruit_TCS34725.h>
#ifdef __AVR__
#include <avr/power.h>
#endif
// Which pin on the Arduino is connected to the NeoPixels?
// On a Trinket or Gemma we suggest changing this to 1
#define PIN            1
// How many NeoPixels are attached to the Arduino?
#define NUMPIXELS      1
#define RED 0
#define GREEN 1
#define BLUE 2
void setup() {
#if defined (__AVR_ATtiny85__)
  if (F_CPU == 16000000) clock_prescale_set(clock_div_1);
#endif
  Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
  Adafruit_TCS34725 tcs = Adafruit_TCS34725(TCS34725_INTEGRATIONTIME_700MS, TCS34725_GAIN_1X);
  byte *rgb = (byte *)malloc(sizeof(byte) * 3);
  uint16_t *redgreenblue = (uint16_t *)malloc(sizeof(uint16_t) * 4);
  // End of trinket special code
  delay(3000);
  pixels.begin(); // This initializes the NeoPixel library.
  tcs.begin();
  tcs.setInterrupt(false);      // turn on LED
  delay(800);  // takes 50ms to read
  tcs.getRawData(redgreenblue, redgreenblue + 1, redgreenblue + 2, redgreenblue + 3);
  //delay(30);
  tcs.setInterrupt(true);  // turn off LED

  double sum;

  sum = redgreenblue[BLUE + 1];
  rgb[RED] = redgreenblue[RED] / sum * 256;
  rgb[GREEN] = redgreenblue[GREEN] / sum * 256;
  rgb[BLUE] = redgreenblue[BLUE] / sum * 256;
  int i;
  for (int i = 0; i < 256; i++) {
    float x = i;
    x /= 255;
    x = x * x;//pow(x, 2.5);
    x *= 255;
    if (rgb[RED] == i) {
      rgb[RED] = x;
    }
    if (rgb[GREEN] == i) {
      rgb[GREEN] = x;
    }
    if (rgb[BLUE] == i) {
      rgb[BLUE] = x;
    }
  }
  for (int i = 0; i < NUMPIXELS; i++) {
    // pixels.Color takes RGB values, from 0,0,0 up to 255,255,255
    pixels.setPixelColor(i, pixels.Color((byte)rgb[RED], (byte)rgb[GREEN], (byte)rgb[BLUE])); // Moderately bright green color.
    pixels.show(); // This sends the updated pixel color to the hardware.
    delay(500); // Delay for a period of time (in milliseconds).
  }
}
void loop() {}