[PD-announce] pdp v0.7

[Yves Degoyon]

hi,

i had to upgrade the PiDiP package also
because some mmx prototypes have changed,
so, it's now PiDiP v0.7.0, nothing's new,
it's just been made compatible with PDP v0.7.

btw, i have a color conversion problem
and as people spoke about YUV/RGB colormaps,
i may ask for an advice here :

i'm using color conversions from effectv, the formulas are :

/*
 * 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
 */

seems it's not accurate, when i pick up a color in an image,
i have another color close to the original.

thanx for pointing me to the right source of information /

cheers,

sevy/yves

Tom Schouten wrote:

>hi all,
>
>pdp-0.7 is available at http://zwizwa.fartit.com/pd/pdp
>mainly a bugfix and code reorganization release.
>
>there are 2 targets now: linux and linux+mmx. 
>
>enjoy,
>tom
>
>
>from CHANGES.LOG:
>
>v0.7:	2003/01/12
>	moved image format conversion routines to pdp_llconv.c
>	added support for rgb->PDP_IMAGE_YV12 in pdp_v4l, pdp_qt
>	added pdp_grey, pdp_chrot, pdp_scope~ objects
>	moved mmx wrappers to pdp_imageproc_mmx.c
>	added portable c code in pdp_imageproc_portable.c
>	added mmx code for pdp_gain
>	fixed bug in pdp_mix/pdp_mix2
>	fixed bug in pdp_bq (removed state reset)
>	move CA stuff to separate lib (see scaf/)
>
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