04-02-2018, 06:07 PM
In this video (https://www.youtube.com/watch?v=E-GbuXU8YMQ), Tony uses image stacking to improve the final image as a result of the combining. Although he uses Photoshop, a similar technique can be used in GIMP.
I have two questions as a result of this video.
(1) In GIMP, to "blend" images, I use G'MIC-Qt. Amongst other options, there are Median and Mean. Mathematically, I know the difference between the two but in terms of the use of those terms in this filter, what are the differences between the two and when might it be better to use one over the other?
(2) When stacking the images in layers in the video referenced above, prior to applying the blending,Tony uses the following procedure (that I will simplify). The opacity of each layer is different and are set to 1/(layer position from the bottom). This means that the bottom layer is 1/1=100%, the second layer from the bottom is 1/2=50%, the third layer from the bottom is 1/3=33%, the fourth layer from the bottom is 1/4=25%, etc. Is this a valid approach? Are there other approaches?
I have two questions as a result of this video.
(1) In GIMP, to "blend" images, I use G'MIC-Qt. Amongst other options, there are Median and Mean. Mathematically, I know the difference between the two but in terms of the use of those terms in this filter, what are the differences between the two and when might it be better to use one over the other?
(2) When stacking the images in layers in the video referenced above, prior to applying the blending,Tony uses the following procedure (that I will simplify). The opacity of each layer is different and are set to 1/(layer position from the bottom). This means that the bottom layer is 1/1=100%, the second layer from the bottom is 1/2=50%, the third layer from the bottom is 1/3=33%, the fourth layer from the bottom is 1/4=25%, etc. Is this a valid approach? Are there other approaches?