Thanks again Janne.
I lumakeyed in KDEnlive and worked well with:
<filter id="lumakey">
<property name="track">0</property>
<property name="threshold">130</property>
<property name="slope">0</property>
<property name="prelevel">255</property>
<property name="postlevel">0</property>
<property name="mlt_type">filter</property>
<property name="mlt_service">lumakey</property>
<property name="kdenlive_id">lumakey</property>
<property name="tag">lumakey</property>
<property name="kdenlive_ix">1</property>
<property name="kdenlive_info"/>
</filter>
<filter id="frei0r.alpha0ps">
<property name="track">0</property>
<property name="version">0.3</property>
<property name="mlt_type">filter</property>
<property name="mlt_service">frei0r.alpha0ps</property>
<property name="kdenlive_id">frei0r.alpha0ps</property>
<property name="tag">frei0r.alpha0ps</property>
<property name="kdenlive_ix">3</property>
<property name="Display">0.0</property>
<property name="Display input alpha">0</property>
<property name="Operation">1.0</property>
<property name="Threshold">0=0.5</property>
<property name="Shrink/Grow/Blur amount">0=0.5</property>
<property name="Invert">0</property>
<property name="kdenlive_info"/>
</filter>
It produces nice feather blur around the talent. However, when I tried
to translate to command line with:
$melt BACKGROUND -track FOREGROUND \
-filter lumakey threshold=130 slope=0 prelevel=255 postlevel=0 \
-filter frei0r.scale0alpha0ps Display=0 "Display input alpha"=0
Operation=1.0 Threshold=0=0.5 "Shrink/Glow/Blur amount"=0=0.5 Invert=0
\
-transition composite
It lumakeyed, but the feather blur didn't work. How to interpret the
nitty gritty details that KDEnlive provides into melt commandline?
Appreciate for some guidance.
On 10/14/15, Zenny <garbytr...@gmail.com> wrote:
> BTW, Janne, Flowblade 1.2 deb gets installed, but segfaults in ubuntu
> 14.04, fyi.
>
> In kdenlive, I found the lumakey under misc which I didn't actually
> expect. Thanks for the pointer. Shotcut GUI neither shows up chorma
> nor luma nor color key in it's filter list, as you must be aware of. I
> am on 15.04 version of Shotcut,fyi.
>
> wbr,
> /z
>
> On 10/13/15, Zenny <garbytr...@gmail.com> wrote:
>> Thanks Janne, but I could not figure out chroma/luma key filter in
>> Shotcut, not one in Flowblade or KDEnlive. Any pointer.
>>
>> On 10/13/15, Janne Liljeblad <janne.liljeb...@gmail.com> wrote:
>>> After 10s of moving sliders in Flowblade i got values threashold:80,
>>> slope:0, prelevel:255, postlevel:0 that seemed to work ok. You
>>> probably should test stuff like this with KDEnlive, Flowblade or
>>> Shotcut before posting here, this isn't too hard to try.
>>>
>>>
>>> Janne
>>>
>>> On Tue, Oct 13, 2015 at 9:24 PM, Zenny <garbytr...@gmail.com> wrote:
>>>> Hi,
>>>>
>>>> I am trying to extract the talent from the background which is lit the
>>>> most using lumakey (See http://picpaste.com/G8XWYhuz.jpg).
>>>>
>>>> Using mltframework v0.9.8,
>>>>
>>>> $ melt BACKGROUND_VIDEO \
>>>> -track FOREGROUND_VIDEO \
>>>> -filter lumakey \
>>>> -transition composite
>>>>
>>>> extracts the talent and leaves the background.
>>>>
>>>> $ melt -query filter=lumakey
>>>>
>>>> gives four variables to choose from: threshold (0-255), slope (0-128),
>>>> prelevel (0-255) and postlevel (0-255) which has gone above my head.
>>>>
>>>> Is there a way that I can extract the talent from the background using
>>>> lumakey filter? Help appreciated.
>>>>
>>>> wbr,
>>>> /z
>>>>
>>>> ------------------------------------------------------------------------------
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>>>> Mlt-devel mailing list
>>>> Mlt-devel@lists.sourceforge.net
>>>> https://lists.sourceforge.net/lists/listinfo/mlt-devel
>>>
>>
>
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