Straightening
Straightening is a post-processing technique in Lightroom Classic used to correct the alignment of landscape photographs. It addresses common compositional issues such as tilted horizons or skewed framing that occur during image capture. Rather than relying on manual rotation tools, the straightening workflow leverages Lightroom’s landscape masking feature to automate horizon detection and correction.
Landscape Masking Method
The landscape masking feature automatically detects and isolates the horizon and landscape elements within an image. Once identified, these masked areas can be selectively adjusted to correct alignment without affecting the rest of the photograph. This approach is more precise than freehand rotation, as it targets the specific structural elements that define proper landscape composition. The mask itself can be refined manually if the automatic detection requires adjustment for particular image conditions.
Practical Application
Straightening in Lightroom Classic is typically applied during the development module workflow, where the corrected alignment can be previewed alongside other edits. The technique is particularly useful for batch processing similar landscape images, as the automated masking can be applied consistently across multiple photographs with similar compositions.
Source Notes
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