/// <summary>
/// Вращение изображения
/// </summary>
/// <param name="originalImage"></param>
/// <param name="angle"></param>
/// <returns></returns>
public static IImage SaveRortatedIImage(IImage originalImage, RotationAngle angle)
{
GDI.IImage rThumbImage;
ImageInfo imageInfo;
GDI.IBitmapImage iBitmapImage;
originalImage.GetImageInfo(out imageInfo);
uint width = imageInfo.Width;
uint height = imageInfo.Height;
ImagingFactory.CreateBitmapFromImage((GDI.IImage)originalImage, width, height,
PixelFormatID.PixelFormat24bppRGB,
GDI.InterpolationHint.InterpolationHintDefault,
out iBitmapImage);
Bitmap rotatedBitmap = ImageUtils.Rotate(ImageUtils.IBitmapImageToBitmap(iBitmapImage as IBitmapImage), angle);
var mStream = new MemoryStream();
rotatedBitmap.Save(mStream, ImageFormat.Jpeg);
rotatedBitmap.Dispose();
var bufSize = (uint)mStream.Length;
byte[] buffer = mStream.GetBuffer();
IntPtr bytes = Marshal.AllocHGlobal(buffer.Length);
Marshal.Copy(buffer, 0, bytes, buffer.Length);
ImagingFactory.CreateImageFromBuffer(bytes, (uint)buffer.Length, (GDI.BufferDisposalFlag)BufferDisposalFlag.BufferDisposalFlagGlobalFree, out rThumbImage);
Marshal.FinalReleaseComObject(originalImage);
return((IImage)rThumbImage);
}
/// <summary>
/// Масштабирование изображения
/// </summary>
/// <param name="originalImage"></param>
/// <param name="maxSize">Размер стороны квадрата в который нужно вписать изображение</param>
/// <returns></returns>
public static IImage ScaleIImage(IImage originalImage, uint maxSize)
{
IImage thumbImage;
ImageInfo imageInfo;
originalImage.GetImageInfo(out imageInfo);
uint width = imageInfo.Width;
uint height = imageInfo.Height;
if (height > maxSize && width < maxSize ||
(height > maxSize && width > maxSize && height > width))
{
width = (width * maxSize) / height;
height = maxSize;
}
else if (height < maxSize && width > maxSize ||
(height > maxSize && width > maxSize && height < width))
{
height = (height * maxSize) / width;
width = maxSize;
}
else if (height > maxSize && width > maxSize && height == width)
{
height = width = maxSize;
}
originalImage.GetThumbnail(width, height, out thumbImage);
return(thumbImage);
}
/// <summary>
/// Создание Bitmap из IImage
/// </summary>
/// <param name="img">Исходное изображение IImage</param>
/// <returns>Bitmap</returns>
public static Bitmap CreateBitmapFromIImage(IImage img)
{
GDI.IBitmapImage bmp;
ImageInfo ii;
img.GetImageInfo(out ii);
ImagingFactory.CreateBitmapFromImage((GDI.IImage)img, ii.Width, ii.Height, PixelFormatID.PixelFormat24bppRGB, GDI.InterpolationHint.InterpolationHintBilinear, out bmp);
return(ImageUtils.IBitmapImageToBitmap((IBitmapImage)bmp));
}
/// <summary>
/// Сохранение изображения
/// </summary>
/// <param name="image"></param>
/// <param name="fileName"></param>
public static void SaveIImage(IImage image, string fileName)
{
ImageInfo imageInfo;
GDI.IBitmapImage iBitmapImage;
image.GetImageInfo(out imageInfo);
uint width = imageInfo.Width;
uint height = imageInfo.Height;
ImagingFactory.CreateBitmapFromImage((GDI.IImage)image, width, height,
PixelFormatID.PixelFormat24bppRGB,
GDI.InterpolationHint.InterpolationHintDefault,
out iBitmapImage);
Bitmap bitmap = ImageUtils.IBitmapImageToBitmap((IBitmapImage)iBitmapImage);
bitmap.Save(fileName, ImageFormat.Jpeg);
bitmap.Dispose();
}