How to convert RGB -> YUV -> RGB (both ways)

Yes, invertible transformations exist. equasys GmbH posted invertible transformations from RGB to YUV, YCbCr, and YPbPr, along with explanations of which situation each is appropriate for, what this clamping is really about, and links to references. (Like a good SO answer.) For my own application (jpg images, not analog voltages) YCbCr was appropriate, so I … Read more

ValueError: Tensor must be from the same graph as Tensor with Bidirectinal RNN in Tensorflow

TensorFlow stores all operations on an operational graph. This graph defines what functions output to where, and it links it all together so that it can follow the steps you have set up in the graph to produce your final output. If you try to input a Tensor or operation on one graph into a … Read more

Automapper: bidirectional mapping with ReverseMap() and ForMember()

ReverseMap returns an IMappingExpression that represents the reversal of the mapping. Once you call, it subsequent calls will be for configuring the reversal of the map. Here’s an example: Mapper.CreateMap<CartItemDto, CartItemModel>() .ForMember(dest => dest.ExtendedCost, opt => opt.Ignore()) .ReverseMap() .ForMember(dest => dest.Pricing, opt => opt.Ignore()) This will ignore the Pricing field in the reverse direction.

How to implement an efficient bidirectional hash table?

Here is a class for a bidirectional dict, inspired by Finding key from value in Python dictionary and modified to allow the following 2) and 3). Note that : The inverse directory bd.inverse auto-updates itself when the standard dict bd is modified. The inverse directory bd.inverse[value] is always a list of key such that bd[key] … Read more

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