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Fastai linalg 4 #13

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Merged
daslu merged 3 commits into from
Dec 28, 2024
Merged

Fastai linalg 4 #13

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99d5f98
numerical-linear-algebra - svd - bugfix - take the 1st image
daslu Dec 28, 2024
ededcca
fixed link
daslu Dec 28, 2024
420c2b9
numerical-linear-algebra - svd - actually taking the first image
daslu Dec 28, 2024
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21 changes: 11 additions & 10 deletions projects/math/numerical-linalg/notebooks/svd.clj
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Expand Up @@ -54,15 +54,16 @@
;; frame and convert it to an image:

(def first-image
(reduce (fn [_ frame] (clj-media.model/image
frame))
nil
(clj-media/frames
(clj-media/file video-path)
:video
{:format (clj-media/video-format
{:pixel-format
:pixel-format/rgba})})))
(first
(into []
(comp (take 1)
(map clj-media.model/image))
(clj-media/frames
(clj-media/file video-path)
:video
{:format (clj-media/video-format
{:pixel-format
:pixel-format/rgba})}))))

first-image

Expand All @@ -86,7 +87,7 @@ first-image
;; the images to a lower resolution, and
;; turn them to gray-scale.

;; See [Luma](https://en.wikipedia.org/wiki/Luma_(video)
;; See [Luma](https://en.wikipedia.org/wiki/Luma_(video))
;; for discussion of the gray-scale formula:
;; 0.299 ∙ Red + 0.587 ∙ Green + 0.114 ∙ Blue

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