BrightnessValue1 (ImageKit Control/ Exif Property)

This property refers to the brightness value. This is the numerator.

[Visual Basic] imagekitcontrolname.File.Exif.BrightnessValue1 [ = Long ]

[Visual C++] [ long = ]imagekitcontrolname.GetFile().GetExif().GetBrightnessValue1()
imagekitcontrolname.GetFile().GetExif().SetBrightnessValue1(long Val)

[VB.NET] imagekitcontrolname.File.Exif.BrightnessValue1[ = Integer ]

[C#.NET] imagekitcontrolname.File.Exif.BrightnessValue1[ = int ]

Reference

BrightnessValue0 is the numerator for the brightness value

BrightnessValue1 is the denominator for the brightness value

The brightness value (unit is the APEX value) = BrightnessValue0 / BrightnessValue1

Ordinarily brightness is given in the range from -99.99 to 99.99

*APEX is the Additive System of Photographic Exposure, a standard unit for expressing exposure.

Explanation

The property value can be set or retrieved by executing the File.GetImageFileType or the File.GetImageFileTypeMem methods.

The property value is derived from the image tags related to the picture taking conditions.

Setting this value

This value can be set at runtime.

Retrieving this value

This value can be retrieved at runtime.

[Differences from the ImageKit7 ActiveX]

In the IK7 this was a read only property. It can now be set.