public void Crop(int left, int top, int right, int bottom)
{
EnsureNotDisposed();
FIBITMAP tmp_dib = FreeImage.Copy(this.Dib, left, top, right, bottom);
if (!tmp_dib.IsNull)
{
this.ReplaceDib(tmp_dib);
}
}
/*
* public bool GetGreyLevelHistogram(int number_of_bins, out ulong[] hist, out double range_per_bin)
* {
* double max = 0.0;
*
* FreeImage.GetMaxPosibleValueForFib(this.Dib, out max);
*
* FreeImageType type = FreeImage.GetImageType(this.Dib);
*
* bool isFloat = (type == FreeImageType.Float || type == FreeImageType.Double);
*
* int number_of_bins = (int) Math.Ceiling(max) + 1;
*
* range_per_bin = 1.0;
* if(isFloat || number_of_bins > 255)
* {
* number_of_bins = 256;
* range_per_bin = max / 256.0;
* }
*
* double max = this.MaximumPossibleIntensityValue;
* range_per_bin = max / 256.0;
*
* hist = new ulong[number_of_bins];
*
* return FreeImage.Histogram(this.Dib, 0, max, number_of_bins, hist);
* }
*/
/*
* public bool AdjustGamma(double gamma)
* {
* return FreeImage.AdjustGamma(this.Dib, gamma);
* }
*
* public bool AdjustBrightness(double brightness)
* {
* return FreeImage.AdjustBrightness(this.Dib, brightness);
* }
*
* public bool AdjustContrast(double contrast)
* {
* return FreeImage.AdjustContrast(this.Dib, contrast);
* }
*
* public bool Invert()
* {
* return FreeImage.Invert(this.Dib);
* }
*
* public bool Paste(FreeImageBitmap src, int left, int top, int alpha)
* {
* return FreeImage.Paste(this.Dib, src.dib, left, top, alpha);
* }
*
* public bool Paste(FreeImageBitmap src, Point location, int alpha)
* {
* return this.Paste(src, location.X, location.Y, alpha);
* }
*/
public new FreeImageAlgorithmsBitmap Copy(int left, int top, int right, int bottom)
{
EnsureNotDisposed();
FreeImageAlgorithmsBitmap result = null;
FIBITMAP newDib = FreeImage.Copy(this.Dib, left, top, right, bottom);
if (!newDib.IsNull)
{
result = new FreeImageAlgorithmsBitmap(newDib);
}
return(result);
}