Je ne pense pas que ce soit un pb avec tes images.
Quand tu stack les images avec DSS, tu a une option pour aligner les canaux RGB sur la même valeur. Je cite:
"Background Calibration
The Background Calibration consists in normalizing the background value of each picture before stacking it.
The background value is defined as the median value of all the pixels of the picture.
Two options are available.
With the Per Channel Background Calibration option the background for each channel is adjusted separately to match the background of the reference frame.
With the RGB Channels Calibration the three red, green and blue channels of each light frame are normalized to the same background value which is the minimum of the three medians values (one for each channel) computed from the reference frame. On top on creating compatible images (stacking wise) this option is also creating a neutral gray background. A side effect is that the overall saturation of the stacked image is quite low (grayscale look)."
Donc, si tu as coché la deuxième option, le résultat du traitement va être assez (ou carrément) gris. Enlève cette option, mais tu devra faire ensuite une balance des blancs.
Pour accentuer les couleurs, met la saturation à -5%.
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