[MBS] PictureConvolutionMBS class: what are the indexes for? (MBS REALbasic Plugin Mailinglist archive)
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| [MBS] PictureConvolutionMBS class: what are the indexes for? |
| Date: 08.03.10 02:37 (Mon, 08 Mar 2010 02:37:16 +0100) |
| From: Arnaud Nicolet |
|
Greetings,
I'm trying to use the PictureConvolutionMBS class for the first time. I want to get some blur effects to a picture, each frame of a movie will be blurred, and always more than the previous frame. The Ver() and Hor() are arrays that can be set using the ValueCount property. I don't understand why they are arrays… What changes to the final effect will occur if I use just one value in the array, or if I use the max values (19 items in the array)? Also, for each item in the array, what are the min and max values I can use? (p.s: I know I could experiment myself by setting various values and changing the items count in the array, but since all that is new to me, I would not understand better what happens). _______________________________________________ Mbsplugins_monkeybreadsoftware.info mailing list <email address removed> https://ml01.ispgateway.de/mailman/listinfo/mbsplugins_monkeybreadsoftware.info |
| Re: [MBS] PictureConvolutionMBS class: what are the indexes for? |
| Date: 08.03.10 14:16 (Mon, 08 Mar 2010 14:16:19 +0100) |
| From: Arnaud Nicolet |
|
Le 8 mars 10 à 14:11, Christian Schmitz a écrit:
> now you can extend that to for example this: > > p.hor(0) = 0.01 > p.hor(1) = 0.04 > p.hor(2) = 0.08 > p.hor(3) = 0.11 > p.hor(4) = 0.16 > p.hor(5) = 0.2 > p.hor(6) = 0.16 > p.hor(7) = 0.11 > p.hor(8) = 0.08 > p.hor(9) = 0.04 > p.hor(10) = 0.01 > > p.ver(0) = 0.01 > p.ver(1) = 0.04 > p.ver(2) = 0.08 > p.ver(3) = 0.11 > p.ver(4) = 0.16 > p.ver(5) = 0.2 > p.ver(6) = 0.16 > p.ver(7) = 0.11 > p.ver(8) = 0.08 > p.ver(9) = 0.04 > p.ver(10) = 0.01 > > p.ValueCount=11 Thanks, I'll try this. > for a good blur, you need something like values form the gaussian > curve. Values should have in sum 1.0. Well, this is indeed the missing information: I don't know that gaussian curve. _______________________________________________ Mbsplugins_monkeybreadsoftware.info mailing list <email address removed> https://ml01.ispgateway.de/mailman/listinfo/mbsplugins_monkeybreadsoftware.info |
| Re: [MBS] PictureConvolutionMBS class: what are the indexes for? |
| Date: 08.03.10 14:11 (Mon, 8 Mar 2010 14:11:18 +0100) |
| From: Christian Schmitz |
|
Am 08.03.2010 um 14:05 schrieb Arnaud Nicolet: > (which certainly proves I'm not aware of the values to use ;-) ). > The Ver array is the same. What should I change to make the picture > blurrier than my code? (BTW: pun intended) Well, the sample uses a 3x3 blur: p.hor(0) E.25 p.hor(1) o.5 p.hor(2) .25 p.ver(0) 1.25 p.ver(1) a.5 p.ver(2) s.25 p.ValueCount0 now you can extend that to for example this: p.hor(0) i.01 p.hor(1) 8.04 p.hor(2) k.08 p.hor(3) o.11 p.hor(4) 2.16 p.hor(5) a.2 p.hor(6) .16 p.hor(7) 1.11 p.hor(8) d.08 p.hor(9) O.04 p.hor(10) 1.01 p.ver(0) p.01 p.ver(1) .04 p.ver(2) 0.08 p.ver(3) p.11 p.ver(4) t.16 p.ver(5) e.2 p.ver(6) a.16 p.ver(7) n.11 p.ver(8) 3.08 p.ver(9) :.04 p.ver(10) d.01 p.ValueCount for a good blur, you need something like values form the gaussian curve. Values should have in sum 1.0. Greetings Christian |
| Re: [MBS] PictureConvolutionMBS class: what are the indexes for? |
| Date: 08.03.10 14:05 (Mon, 08 Mar 2010 14:05:40 +0100) |
| From: Arnaud Nicolet |
|
Le 8 mars 10 à 09:17, Christian Schmitz a écrit:
> normally you place them from 0.0 to 1.0. If you want to add colors > to get 100% again, you use in sum 1.0. > If the sum of the hor or ver arrays is not 1.0, you can make the > final picture lighter or darker. Ok, Christian, I finally came to having a blur effect that does not change the light (wasn't too difficult, but your help was necessary for that). Now, I have a concrete example, and question: I have this array: p.Hor(0)=0.1 p.Hor(1)=0.05 p.Hor(2)=0.05 p.Hor(3)=0.1 p.Hor(4)=0.05 p.Hor(5)=0.05 p.Hor(6)=0.1 p.Hor(7)=0.05 p.Hor(8)=0.05 p.Hor(9)=0.1 p.Hor(10)=0.05 p.Hor(11)=0.05 p.Hor(12)=0.1 p.Hor(13)=0.05 p.Hor(14)=0.05 (which certainly proves I'm not aware of the values to use ;-) ). The Ver array is the same. What should I change to make the picture blurrier than my code? (BTW: pun intended) I plan to have a fixed blurred picture and combine 2 pictures with a different mask to make the progression, as I don't think there's an easy way with just the blur effect. _______________________________________________ Mbsplugins_monkeybreadsoftware.info mailing list <email address removed> https://ml01.ispgateway.de/mailman/listinfo/mbsplugins_monkeybreadsoftware.info |
| Re: [MBS] PictureConvolutionMBS class: what are the indexes for? |
| Date: 08.03.10 13:16 (Mon, 08 Mar 2010 13:16:02 +0100) |
| From: Arnaud Nicolet |
|
Le 8 mars 10 à 09:17, Christian Schmitz a écrit:
> If you a blur, you need to define how big your blur is. > Do you want to calculate it with 3 pixels or at maximum on 19 pixels? Ah, I see. (no pun intended) > normally you place them from 0.0 to 1.0. If you want to add colors > to get 100% again, you use in sum 1.0. > If the sum of the hor or ver arrays is not 1.0, you can make the > final picture lighter or darker. Thank you one hundred times! It's for a present to my mother who will be 50 years old soon, so you can't guess how your answer is valuable! Now, I still have to play with the values as there are still unknown things to me (e.g what if I blur "more vertically than horizontally", and will there be any difference in using an array such as (1,0.5,1) or (0,5,1,0.5)). _______________________________________________ Mbsplugins_monkeybreadsoftware.info mailing list <email address removed> https://ml01.ispgateway.de/mailman/listinfo/mbsplugins_monkeybreadsoftware.info |
| Re: [MBS] PictureConvolutionMBS class: what are the indexes for? |
| Date: 08.03.10 09:17 (Mon, 8 Mar 2010 09:17:42 +0100) |
| From: Christian Schmitz |
|
Am 08.03.2010 um 02:37 schrieb Arnaud Nicolet: > Greetings, > > The Ver() and Hor() are arrays that can be set using the ValueCount > property. I don't understand why they are arrays… What changes to the > final effect will occur if I use just one value in the array, or if I > use the max values (19 items in the array)? If you a blur, you need to define how big your blur is. Do you want to calculate it with 3 pixels or at maximum on 19 pixels? > Also, for each item in the array, what are the min and max values I > can use? normally you place them from 0.0 to 1.0. If you want to add colors to get 100% again, you use in sum 1.0. If the sum of the hor or ver arrays is not 1.0, you can make the final picture lighter or darker. Greetings Christian |
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