Esempio n. 1
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        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));
            }
        }
Esempio n. 2
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        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));
            }
        }
Esempio n. 3
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        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());
        }
Esempio n. 4
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 public override IEnumerable <IRow> Extract(IUnstructuredReader input, IUpdatableRow output)
 {
     byte[] imageArray = ImageOps.GetByteArrayforImage(input.BaseStream);
     output.Set <byte[]>(0, imageArray);
     yield return(output.AsReadOnly());
 }