Bracketed photo capture with iPhone 14 Pro produces photos with oddly clipped highlights. Rather than pixel values clipping normally to white when too bright, there is a sudden and harsh jump from gray to white. See image below that shows a comparison of a normal photo capture (using qualityPriorization .speed) and a bracketed capture. Note the massive difference in clipping behavior.
Here's how I am configuring the bracketed capture:
let bracketedStillImageSettings = AVCaptureAutoExposureBracketedStillImageSettings.autoExposureSettings(exposureTargetBias: 0.0)
let bracketSettings = AVCapturePhotoBracketSettings(rawPixelFormatType: 0 as OSType, processedFormat: [AVVideoCodecKey: AVVideoCodecType.jpeg], bracketedSettings: [bracketedStillImageSettings])
photoOutput.capturePhoto(with: bracketSettings, delegate: photoCaptureProcessor)
Things I've tried that don't make a difference:
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Changing AVCapturePhotoBracketSettings.photoQualityPrioritization to values of .speed, .balanced, or .quality
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Changing device type .builtInTripleCamera, .builtInUltraWideCamera, .builtInWideCamera, .builtInDualCamera, etc
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Changing capture format from jpeg to hevc
Any ideas?
