我正在开发适用于视觉障碍用户的Windows Phone 8.1 WinRT上的放大应用程序,并且在放大页面(基于相机)中,我想应用色彩效果和对比度以获得更多可访问性(黑色为白色,黄色为蓝色,黄色为黑色,黑色白色,......)
http://www.1800pocketpc.com/wp-content/uploads/2014/10/Microsoft-Pocket-Magnifier-700x437.jpg
有谁知道如何处理?
答案 0 :(得分:1)
我认为最简单的方法是使用适用于WinRT平台的Lumia Imaging SDK(https://msdn.microsoft.com/en-us/library/dn859593.aspx)。例如,ContrastFilter类可能非常适合你。以下是如何使用它:
using (var filterEffect = new FilterEffect(source))
{
// Initialize the filter and add the filter to the FilterEffect collection
var filter = new ContrastFilter(0.5);
filterEffect.Filters = new IFilter[] { filter };
// Create a target where the filtered image will be rendered to
var target = new WriteableBitmap(width, height);
// Create a new renderer which outputs WriteableBitmaps
using (var renderer = new WriteableBitmapRenderer(filterEffect, target))
{
// Render the image with the filter(s)
await renderer.RenderAsync();
// Set the output image to Image control as a source
ImageControl.Source = target;
}
await SaveEffectAsync(filterEffect, "ContrastFilter.jpg", outputImageSize);
}
在有人说它是sdk文档的副本/粘贴之前 - 没关系,因为我已将该示例写入原始文档:)