I was rereading the manual about the Histogram plugin and there are things that I don't understand: 1- Is there no longer a frame interval averaging function (Frames button)? When was it taken out? Perhaps on this occasion? https://www.mail-archive.com/[email protected]/msg02691.html (moreover, the images are to be replaced) 2-I don't quite understand the concept of "Sum" instead of "max." The explanations are not clear to me. Can anyone clarify to me the behavior of the plugin with respect to Histogram Bezier, scopes and various color models? The explanation in the manual (section: Theory) is taken from here: https://www.mail-archive.com/[email protected]/msg01834.html
I do not remember the Frame button and its Textbox as shown in the picture of the Manual (Figure 10.46). Since Cin-20201031 (and before, but I don't remember when) the button is called "Sum Frame" and it works together with the selection (highlight) in the Timeline. More, the table in the bottom of the "Histogram" subsection I am seeing in the HTML version is wrong. You can see the right version in GoodGuy' reply: https://www.mail-archive.com/[email protected]/msg01886.html ============================== The effect of this is to do this: 1 1 1 000100 3 pixels vs 0011000 3 pixels On the left, the course color model piles all 3 pixels into one bin: max value 3. On the right, the fine color model puts the counts into 2 bins, max 2, sum 3. So, by reporting the sum the shape of the results are more similar. ============================== It is important where the 1's are piled. IgorBeg Il 17/10/2023 21:35, Andrea paz via Cin ha scritto:
I was rereading the manual about the Histogram plugin and there are things that I don't understand: 1- Is there no longer a frame interval averaging function (Frames button)? When was it taken out? Perhaps on this occasion? https://www.mail-archive.com/[email protected]/msg02691.html (moreover, the images are to be replaced) 2-I don't quite understand the concept of "Sum" instead of "max." The explanations are not clear to me. Can anyone clarify to me the behavior of the plugin with respect to Histogram Bezier, scopes and various color models? The explanation in the manual (section: Theory) is taken from here: https://www.mail-archive.com/[email protected]/msg01834.html
I tried to make some clarifications on the Histogram plugin (and some minor changes in other plugins as well). Most importantly, I added a mathematical introduction to the Theory section, also adding a new image, to provide more detailed context. But I did not touch GG's old explanations of "sum vs max". Not having fully understood them, I don't want to edit them so as not to make a mistake. Besides the images and Plugins.tex I also attach the txt version if anyone wants to correct or improve it.
It will take me some time to review this as you made a lot of improvements and I want to understand it. Thank you, Phyllis On Thu, Oct 19, 2023 at 1:15 PM Andrea paz via Cin < [email protected]> wrote:
I tried to make some clarifications on the Histogram plugin (and some minor changes in other plugins as well). Most importantly, I added a mathematical introduction to the Theory section, also adding a new image, to provide more detailed context. But I did not touch GG's old explanations of "sum vs max". Not having fully understood them, I don't want to edit them so as not to make a mistake.
Besides the images and Plugins.tex I also attach the txt version if anyone wants to correct or improve it. -- Cin mailing list [email protected] https://lists.cinelerra-gg.org/mailman/listinfo/cin
Checked into the Manual GIT, the improved explanations for Histogram as Andrea provided -- I did make a few grammatical changes only. Thank you Andrea. On Thu, Oct 19, 2023 at 1:15 PM Andrea paz via Cin < [email protected]> wrote:
I tried to make some clarifications on the Histogram plugin (and some minor changes in other plugins as well). Most importantly, I added a mathematical introduction to the Theory section, also adding a new image, to provide more detailed context. But I did not touch GG's old explanations of "sum vs max". Not having fully understood them, I don't want to edit them so as not to make a mistake.
Besides the images and Plugins.tex I also attach the txt version if anyone wants to correct or improve it. -- Cin mailing list [email protected] https://lists.cinelerra-gg.org/mailman/listinfo/cin
participants (3)
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Andrea paz -
Igor BEGHETTO -
Phyllis Smith