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*Logarithme: l'échelle logarithmique. L'opération accentue simultanément les niveaux faibles et lumineux de l'image.
*Logarithme: l'échelle logarithmique. L'opération accentue simultanément les niveaux faibles et lumineux de l'image.
*Racine carrée: la racine carrée de chaque pixel. Ce qui peut être vu principalement avec ce mode sont les parties les plus lumineuses de l'image.
*Racine carrée: la racine carrée de chaque pixel. Ce qui peut être vu principalement avec ce mode sont les parties les plus lumineuses de l'image.
*Asinh: the inverse hyperbolic sine is commonly used, it reproduces the perceptual ability of the human eye, which can accommodate to perceive dramatically different levels of brightness simultaneously. Asinh is close to the logarithm mode but has a better behaviour around zero. *Histogram: the histogram equalisation. It increases the contrast of the image by increasing the dynamic range of intensity given to pixels with the most probable intensity values. It is very valuable to evaluate all the signal contained in the image.
*Asinh: the inverse hyperbolic sine is commonly used, it reproduces the perceptual ability of the human eye, which can accommodate to perceive dramatically different levels of brightness simultaneously. Asinh is close to the logarithm mode but has a better behaviour around zero.  
*Histogram: the histogram equalisation. It increases the contrast of the image by increasing the dynamic range of intensity given to pixels with the most probable intensity values. It is very valuable to evaluate all the signal contained in the image.

Revision as of 20:39, 8 March 2015

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Message definition (Siril:Manual)
A Display Mode viewer is used to improve the visibility of an image, but without altering its pixel data in any way, similarly to what [[DS9]] scale does.
*Linear: the default mode in Siril. Pixels are displayed from the darkest to the brightest in a linear scale.
*Logarithm: the logarithmic scale. The operation emphases simultaneously information in faint and bright levels of the image.
*Square root: the square root of each pixel. The result is close to the logarithm mode's.
*Squared: squared of each pixel. What can be seen with this mode is mainly the brightest part of the image.
*Asinh: the inverse hyperbolic sine is commonly used, it reproduces the perceptual ability of the human eye, which can accommodate to perceive dramatically different levels of brightness simultaneously. Asinh is close to the logarithm mode but has a better behaviour around zero.
*AutoStretch: Siril performs an automatic screen stretch.
*Histogram: the histogram equalisation. It increases the contrast of the image by increasing the dynamic range of intensity given to pixels with the most probable intensity values. It is very valuable to evaluate all the signal contained in the image.

Une fenêtre de prévisualisation est utilisé afin d'améliorer la visibilité de l'image, sans altérer ses données de pixels en aucun cas, semblable à ce que fait l'échelle de DS9.

  • Linéaire: le mode par défaut de Siril. Les pixels sont affichés du plus sombre au plus clair dans une échelle linéaire.
  • Logarithme: l'échelle logarithmique. L'opération accentue simultanément les niveaux faibles et lumineux de l'image.
  • Racine carrée: la racine carrée de chaque pixel. Ce qui peut être vu principalement avec ce mode sont les parties les plus lumineuses de l'image.
  • Asinh: the inverse hyperbolic sine is commonly used, it reproduces the perceptual ability of the human eye, which can accommodate to perceive dramatically different levels of brightness simultaneously. Asinh is close to the logarithm mode but has a better behaviour around zero.
  • Histogram: the histogram equalisation. It increases the contrast of the image by increasing the dynamic range of intensity given to pixels with the most probable intensity values. It is very valuable to evaluate all the signal contained in the image.
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