public void ExtractRegionFullSize(int x, int y, int width, int height)
{
var filename = Path.GetFullPath(@"test_image.tif");
var request = new ImageRequest
(
"",
new ImageRegion(ImageRegionMode.Region, x, y, width, height),
new ImageSize(ImageSizeMode.Full),
new ImageRotation(0, false),
ImageQuality.@default,
ImageFormat.jpg
);
(var state, var img) = TiffExpander.ExpandRegion(null, Log, new Uri(filename), request, false);
using (img)
{
Assert.IsNotNull(img, "Image is null");
Assert.AreEqual(width, img.Width, "Image width does not match expected width");
Assert.AreEqual(height, img.Height, "Image height does not match expected height");
using (var bmp = SKBitmap.FromImage(img))
{
(var coli, var colj) = (x / 100, y / 100);
var colour = TestColours[coli, colj];
foreach (var c in bmp.Pixels.Distinct())
{
Assert.AreEqual(new SKColor(colour.Item1, colour.Item2, colour.Item3), c, "Expected colour values do not match");
}
}
}
}
public void ExtractSquareMax()
{
var filename = Path.GetFullPath(@"test_image.tif");
var request = new ImageRequest
(
"",
new ImageRegion(ImageRegionMode.Square),
new ImageSize(ImageSizeMode.Max),
new ImageRotation(0, false),
ImageQuality.@default,
ImageFormat.jpg
);
(var state, var img) = TiffExpander.ExpandRegion(null, Log, new Uri(filename), request, false);
using (img)
{
Assert.IsNotNull(img, "Image is null");
Assert.AreEqual(1000, img.Width, "Image width does not match expected width");
Assert.AreEqual(1000, img.Height, "Image height does not match expected height");
using (var bmp = SKBitmap.FromImage(img))
{
Assert.AreEqual(100, bmp.Pixels.Distinct().Count());
}
}
}
/// <summary>
/// Extract region from source image
/// </summary>
/// <param name="imageUri">The <see cref="Uri"/> of the source image</param>
/// <param name="request">The <see cref="ImageRequest"/></param>
/// <param name="allowSizeAboveFull">Allow the output size to exceed the original dimensions of the image</param>
/// <param name="quality">The <see cref="ImageQuality"/> settings for encoding</param>
/// <returns></returns>
public async Task <(ProcessState, SKImage)> ExtractRegion(Uri imageUri, ImageRequest request, bool allowSizeAboveFull, TremendousIIIF.Common.Configuration.ImageQuality quality)
{
var sourceFormat = await GetSourceFormat(imageUri, request.RequestId);
switch (sourceFormat)
{
case ImageFormat.jp2:
return(J2KExpander.ExpandRegion(HttpClient, Log, imageUri, request, allowSizeAboveFull, quality));
case ImageFormat.tif:
return(TiffExpander.ExpandRegion(HttpClient, Log, imageUri, request, allowSizeAboveFull));
default:
throw new IOException("Unsupported source format");
}
}
public void FullImage()
{
var filename = Path.GetFullPath(@"test_image.tif");
var request = new ImageRequest
(
"",
new ImageRegion(ImageRegionMode.Full),
new ImageSize(ImageSizeMode.Full),
new ImageRotation(0, false),
ImageQuality.@default,
ImageFormat.jpg
);
(var state, var img) = TiffExpander.ExpandRegion(null, Log, new Uri(filename), request, false);
Assert.IsNotNull(img, "Image is null");
Assert.AreEqual(1000, img.Width, "Image width does not match expected width");
Assert.AreEqual(1000, img.Height, "Image height does not match expected height");
}