[PD] Re: [PD-announce] PiDiP 0.7.5 [ video compositor ]

[Yves Degoyon]

hi,

btw, the color conversion problem ( YUV -> RGB )
i've raised on that list was an error on my side :
the object was not picking the right pixel, oops !!

the following formulas are allright :

* conversion from YUV to RGB
* r = 1.164*(y-16) + 1.596*(v-128);
* g = 1.164*(y-16) - 0.813*(v-128) - 0.391*(u-128);
* b = 1.164*(y-16) + 2.018*(u-128);
* conversion from RGB to YUV
* y = 0.257*r + 0.504*g + 0.098*b + 16
* u = -0.148*r - 0.291*g + 0.439*b + 128
* v = 0.439*r - 0.368*g - 0.071*b + 128


sevy/yves

Yves Degoyon wrote:

> 0.7.5
> added pdp_form : addition of geometric forms
> added pdp_compose : color-based video compositor ( thanx to liz for 
> the suggestion )
> added actions in pdp_text ( rotations, font, resize, dither, blend )
> fixed colors in pdp_transform, pdp_warp
> fixed install stage
>
>
>
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