fjcore

C#: Decoding JPEG images with 12-bit precision using Silverlight FJCore library?

由 泪湿孤枕 提交于 2020-01-04 06:15:45
问题 In my C# Silverlight application, I am trying to decode DICOM images in compressed JPEG transfer syntax, using the FJCore class library. The DICOM images are normally compressed with 12-bit precision. When trying to decode such an image using the original FJCore source code, I get an exception saying "Unsupported codec type", because in the original FJCore implementation only SOF0 (Baseline DCT) and SOF2 (Progressive DCT) Start-of-Frame markers are supported. If I change the implementation to

Using FJCore to encode Silverlight WriteableBitmap

由 ≡放荡痞女 提交于 2019-11-30 21:49:06
I am trying to find out how to use FJCore to encode a WriteableBitmap to a jpeg. I understand that WriteableBitmap provides the raw pixels but I am not sure how to convert it to the format that FJCore expects for its JpegEncoder method. JpegEncoder has two overloads, one takes a FluxJpeg.Core.Image and the other takes in a DecodedJpeg. I was trying to create a FluxJpeg.Core.Image but it expects a byte[][,] for the image data. byte[n][x,y] where x is width and y is height but I don't know what n should be. I thought that n should be 4 since that would correspond to the argb info encoded in each

Using FJCore to encode Silverlight WriteableBitmap

由 随声附和 提交于 2019-11-30 05:31:22
问题 I am trying to find out how to use FJCore to encode a WriteableBitmap to a jpeg. I understand that WriteableBitmap provides the raw pixels but I am not sure how to convert it to the format that FJCore expects for its JpegEncoder method. JpegEncoder has two overloads, one takes a FluxJpeg.Core.Image and the other takes in a DecodedJpeg. I was trying to create a FluxJpeg.Core.Image but it expects a byte[][,] for the image data. byte[n][x,y] where x is width and y is height but I don't know what
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