public byte[] scaleStreamImageTo(int outWidth, int outHeight)
{
int x, y, w, h;
int iWoH = mImage.Width * outHeight;
int iHoW = mImage.Height * outWidth;
if (iWoH < iHoW)
{
w = (int)((double)(iWoH) / mImage.Height);
h = outHeight;
x = (int)((outWidth - w) / 2.0);
y = 0;
}
else
{
w = outWidth;
h = (int)((double)(iHoW) / mImage.Width);
x = 0;
y = (int)((outHeight - h) / 2.0);
}
using (Bitmap outImage = new Bitmap(outWidth, outHeight))
{
drawImage(mImage, outImage, new Rectangle(x, y, w, h));
return(ImageOps.imageToByteArray(outImage));
}
}
public byte[] scaleStreamImageBy(float scaleFactor)
{
int outWidth = (int)(mImage.Width * scaleFactor);
int outHeight = (int)(mImage.Height * scaleFactor);
using (Bitmap outImage = new Bitmap(outWidth, outHeight))
{
drawImage(mImage, outImage, new Rectangle(0, 0, outWidth, outHeight));
return(ImageOps.imageToByteArray(outImage));
}
}
public override IEnumerable <IRow> Extract(IUnstructuredReader input, IUpdatableRow output)
{
byte[] img = ImageOps.GetByteArrayforImage(input.BaseStream);
// load image only once into memory per row
using (StreamImage inImage = new StreamImage(img))
{
output.SetColumnIfExists("image", img);
output.SetColumnIfExists("equipment_make", inImage.getStreamImageProperty(ImageProperties.equipment_make));
output.SetColumnIfExists("equipment_model", inImage.getStreamImageProperty(ImageProperties.equipment_model));
output.SetColumnIfExists("description", inImage.getStreamImageProperty(ImageProperties.description));
output.SetColumnIfExists("copyright", inImage.getStreamImageProperty(ImageProperties.copyright));
output.SetColumnIfExists("thumbnail", inImage.scaleStreamImageTo(this._scaleWidth, this._scaleHeight));
}
yield return(output.AsReadOnly());
}
public override IEnumerable <IRow> Extract(IUnstructuredReader input, IUpdatableRow output)
{
byte[] imageArray = ImageOps.GetByteArrayforImage(input.BaseStream);
output.Set <byte[]>(0, imageArray);
yield return(output.AsReadOnly());
}