Class RadianceWriterOptions

Namespace

Egami.Formats.Radiance

Assembly

Egami.dll

Options for writing Radiance pictures: RGBE with per-channel run-length encoding, top row first.

public sealed class RadianceWriterOptions : WriterOptions

Inheritance

object

WriterOptions

RadianceWriterOptions

Inherited Members

WriterOptions.StripMetadata

WriterOptions.OmitSrgbProfile

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Examples

// Linear light, unclamped: 1.0 is reference white. The brightest value is measured as the light level ToneMap fits.
using Raster<RgbF32> hdr = Raster.Load<RgbF32>("desk.hdr");
var details = (RadianceDetails)hdr.Metadata.FormatDetails!;
double? exposure = details.Exposure;                    // the header's EXPOSURE lines; the pixels are kept as stored

// To SDR: tone map, then save. Saving the HDR raster to PNG or JPEG as it is would clip the highlights.
using Raster<RgbF32> mapped = hdr.Derive(ops => ops.ToneMap(ToneMapping.Bt2390));
mapped.Save("desk.jpg");

// RGBE with per-channel run-length scanlines, as Radiance writes them; EXPOSURE only when asked for.
hdr.Save("copy.hdr");
hdr.Save("labeled.hdr", new RadianceWriterOptions { Exposure = 1.5 });

Properties

Compress

Gets whether to run-length encode each row, as Radiance itself does. Defaults to true.

public bool Compress { get; init; }

Property Value

bool

Default

Gets the default options.

public static RadianceWriterOptions Default { get; }

Property Value

RadianceWriterOptions

Exposure

Gets the EXPOSURE line to write, or null (the default) for none. It only labels the file: the pixel values are written as they are.

public double? Exposure { get; init; }

Property Value

double?