Cactus world

For the discussion of topics related to the conservation, cultivation, propagation and exhibition of cacti & other succulents.
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Aiko
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Re: Cactus world

Post by Aiko »

Stuart wrote: Sat Jun 12, 2021 9:02 am The photo on the front cover had me stumped - all I could come up with was a hybrid Copiapoa Krainziana / Cinerea but the background coast didn't fit in.
I would never have guessed this to be a Melocactus too. But a the background does not seem out of place for a Copiapoa? I know them to be coastal plants, usually on cliffs next to the water taking advantage of the water vapour, for many pictures I can remember having seen of Copiapoas. Still it looks more like an Echinocactus or Parodia to me...
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el48tel
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Re: Cactus world

Post by el48tel »

ralphrmartin wrote: Fri Jun 11, 2021 8:48 pm Thanks Teg!

Interesting article Terry. Some of my colleagues in my research group Cardiff University worked on nonphotorealistic rendering - computer algorithms that take in a photo, and automatically re-render it in an "artistic" style.

Below are one or two results from one of my photos; if anyone else wants to try, you can upload your own photos at
https://www.cs.cf.ac.uk/npr/

t56b36390bce2b31ee163.gif
i56b36390bce2b31ee163.gif
b56b36390bce2b31ee163.gif
Certainly a most interesting divertissement
Endeavouring to grow Aylostera, Echinocereus, Echinopsis, Gymnocalycium, Matucana, Rebutia, and Sulcorebutia. Fallen out of love with Lithops and aggravated by Aeoniums.
Currently being wooed by Haworthia, attempting hybridisation, and enticed by Mesembs.
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Phil_SK
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Re: Cactus world

Post by Phil_SK »

Stuart wrote: Sat Jun 12, 2021 9:02 am The photo on the front cover had me stumped
I couldn't work out what it was when I first saw it either... even though it was me who'd done the layout for Paul's article! :lol:
Phil Crewe, BCSS 38143. Mostly S. American cacti, esp. Lobivia, Sulcorebutia and little Opuntia
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ralphrmartin
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Re: Cactus world

Post by ralphrmartin »

MatDz wrote: Sat Jun 12, 2021 12:06 am This is really interesting Ralph, thank you for sharing! I didn't read the details, but it feels very similar to the style transfer in deep learning area: https://www.tensorflow.org/tutorials/ge ... e_transfer
My colleagues did this quite a while before deep learning became fashionable. Indeed Paul Rosin, the main chap, has even co edited a book about it:

Image and Video-Based Artistic Stylisation
by Paul Rosin, John Collomosse
Springer 2012

But I suspect we are now getting a bit far from C&S...
Ralph Martin
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Re: Cactus world

Post by Tina »

That Melo is on my wish list now, white spines & white cephaleum, what's not to lust after.
Tina

varied collection of succulents and cacti but I especially like Euphorbia's, Ariocarpus and variegated agaves.

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