/**
* Analyzes image colors and creates color map.
*/
protected void AnalyzePixels()
{
int len = pixels.Length;
int nPix = len / 3;
indexedPixels = new byte[nPix];
NeuQuant nq = new NeuQuant(pixels, len, sample);
// initialize quantizer
colorTab = nq.Process(); // create reduced palette
//for (int i = 0; i < colorTab.Length; i++)
//{
// if (colorTab[i] == 0)
// {
// colorTab[i] = 255;
// }
//}
// convert map from BGR to RGB
//for (int i = 0; i < colorTab.Length; i += 3)
//{
// byte temp = colorTab[i];
// colorTab[i] = colorTab[i + 2];
// colorTab[i + 2] = temp;
// usedEntry[i / 3] = false;
//}
for (int i = 0; i < colorTab.Length; i += 3)
{
usedEntry[i / 3] = false;
}
// map image pixels to new palette
int k = 0;
for (int i = 0; i < nPix; i++)
{
int index =
nq.Map(pixels[k++] & 0xff,
pixels[k++] & 0xff,
pixels[k++] & 0xff);
usedEntry[index] = true;
indexedPixels[i] = (byte)index;
}
pixels = null;
colorDepth = 8;
palSize = 7;
// get closest match to transparent color if specified
if (transparent != Color.FromArgb(255, 0, 0, 0))
{
transIndex = FindClosest(transparent);//255
}
}
public void ConstructorNullArgument()
{
try
{
_nq = new NeuQuant(null, 10);
}
catch (ArgumentNullException ex)
{
Assert.AreEqual("thePicture", ex.ParamName);
throw;
}
}
// Analyzes image colors and creates color map.
private void AnalyzePixels()
{
int len = _pixels.Length;
int nPix = len / 3;
_indexedPixels = new byte[nPix];
NeuQuant nq = new NeuQuant(_pixels, len, (int)_sampleInterval);
_colorTab = nq.Process(); // Create reduced palette
// Map image pixels to new palette
int k = 0;
for (int i = 0; i < nPix; i++)
{
int index = nq.Map(_pixels[k++] & 0xff, _pixels[k++] & 0xff, _pixels[k++] & 0xff);
_usedEntry[index] = true;
_indexedPixels[i] = (byte)index;
}
_pixels = null;
_colorDepth = 8;
_paletteSize = 7;
}
/**
* Analyzes image colors and creates color map.
*/
protected void AnalyzePixels()
{
int len = this.pixels.Length;
int nPix = len / 3;
this.indexedPixels = new byte[nPix];
NeuQuant nq = new NeuQuant(this.pixels, len, this.sample);
// initialize quantizer
this.colorTab = nq.Process(); // create reduced palette
// convert map from BGR to RGB
// for (int i = 0; i < colorTab.Length; i += 3)
// {
// byte temp = colorTab[i];
// colorTab[i] = colorTab[i + 2];
// colorTab[i + 2] = temp;
// usedEntry[i / 3] = false;
// }
// map image pixels to new palette
int k = 0;
for (int i = 0; i < nPix; i++) {
int index = nq.Map(this.pixels[k++] & 0xff, this.pixels[k++] & 0xff, this.pixels[k++] & 0xff);
this.usedEntry[index] = true;
this.indexedPixels[i] = (byte) index;
}
this.pixels = null;
this.colorDepth = 8;
this.palSize = 7;
// get closest match to transparent color if specified
if (this.transparent != Color.Empty) {
this.transIndex = this.FindClosest(this.transparent);
}
}
/**
* Analyzes image colors and creates color map.
*/
private void AnalyzePixels()
{
int len = _pixels.Length;
int nPix = len/3;
_indexedPixels = new byte[nPix];
NeuQuant nq = new NeuQuant(_pixels, len, _sample);
// initialize quantizer
_colorTab = nq.Process(); // create reduced palette
// map image pixels to new palette
int k = 0;
for (int i = 0; i < nPix; i++) {
int index = nq.Map(_pixels[k++] & 0xff, _pixels[k++] & 0xff, _pixels[k++] & 0xff);
_usedEntry[index] = true;
_indexedPixels[i] = (byte)index;
}
_pixels = null;
_colorDepth = 8;
_palSize = 7;
// get closest match to transparent color if specified
if (_transparent != Color.Empty)
_transIndex = FindClosest(_transparent);
}
protected void AnalyzePixels()
{
int len = this.pixels.Length;
int nPix = len / 3;
this.indexedPixels = new byte[nPix];
NeuQuant nq = new NeuQuant(this.pixels, len, this.sample);
// initialize quantizer
this.colorTab = nq.Process(); // create reduced palette
int k = 0;
for (int i = 0; i < nPix; i++) {
int index = nq.Map(this.pixels[k++] & 0xff, this.pixels[k++] & 0xff, this.pixels[k++] & 0xff);
this.usedEntry[index] = true;
this.indexedPixels[i] = (byte) index;
}
this.pixels = null;
this.colorDepth = 8;
this.palSize = 7;
// get closest match to transparent color if specified
if (this.transparent != Color.Empty) {
this.transIndex = this.FindClosest(this.transparent);
}
}
