彩票走势图

Aspose.Imaging是一种高级图像处理控件，允许开发人员创建，编辑，绘制或转换图像。图像导出和转换是API核心功能之一，它允许在不安装Photoshop应用程序或任何其他图像编辑器的情况下保存为AdobePhotoshop®本机格式。

事实证明，Aspose.Imaging是处理各种图像格式的强大API。除单页图像外，Aspose.Imaging还支持处理多页图像，包括GIF，TIFF，PSD，DICOM，CDR和WebP。

近期发布了Aspose.Imaging for .NET v21.6，此版本包含新功能和增强功能：改进多页矢量格式到多页光栅格式的导出，支持对隔行 GIF 图像进行调整大小操作，还没使用过的朋友可以点击下载最新版Aspose.Imaging

新增与改善

用法示例

IMAGINGNET-4100 改进了多页矢量格式到多页光栅格式的导出

### Export CMX image with pages of different sizes to TIFF format
Aspose.Imaging allows you to specify rasterization options for each page during the export. The following source code sample demonstrates how to export multi-page CMX image to TIFF format:

static void Main()
{
    using (var image = (VectorMultipageImage)Image.Load("MultiPage2.cmx"))
    {
        // Create page rasterization options
        var pageOptions = CreatePageOptions<CmxRasterizationOptions>(image);

        // Create TIFF options
        var options = new TiffOptions(TiffExpectedFormat.TiffDeflateRgb) { MultiPageOptions = new MultiPageOptions { PageRasterizationOptions = pageOptions } };

        // Export image to TIFF format
        image.Save("MultiPage2.cmx.tiff", options);
    }
}

private static VectorRasterizationOptions[] CreatePageOptions<TOptions>(VectorMultipageImage image) where TOptions : VectorRasterizationOptions
{
    // Create page rasterization options for each page in the image
    return image.Pages.Select(x => x.Size).Select(CreatePageOptions<TOptions>).ToArray();
}

private static VectorRasterizationOptions CreatePageOptions<TOptions>(Size pageSize) where TOptions : VectorRasterizationOptions
{
    // Create the instance of rasterization options
    var options = Activator.CreateInstance<TOptions>();

    // Set the page size
    options.PageSize = pageSize;
    return options;
}

### Export CDR image to PDF format
The following source code sample shows you how to export CDR image to PDF format:

using (var image = (VectorMultipageImage)Image.Load("MultiPage2.cdr"))
{
    // Create page rasterization options
    var pageOptions = CreatePageOptions<CdrRasterizationOptions>(image);

    // Create PDF options
    var options = new PdfOptions { MultiPageOptions = new MultiPageOptions { PageRasterizationOptions = pageOptions } };

    // Export image to PDF format
    image.Save("MultiPage2.cdr.pdf", options);
}

IMAGINGNET-4078 支持将 16 bpp RGBA 5551 BMP 转换为 32 bpp RGBA PNG

### Exporting RGB 16 Bpp BMP with 5,5,5,1 channels to RGBA 32 Bpp PNG


using (var image = Image.Load("tiger2.bmp"))
{
    image.Save("tiger2.bmp.png", new PngOptions() { ColorType = Aspose.Imaging.FileFormats.Png.PngColorType.TruecolorWithAlpha });
}

IMAGINGNET-4060 支持隔行 GIF 图像的调整大小操作

using (Image image = Image.Load("cat_interlaced.gif"))
{
    // Perform resize operation
    image.ResizeHeightProportionally(400, ResizeType.HighQualityResample);

    // Export image to any raster format
    image.Save("cat_resized.png", new PngOptions());
}

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