hellonico commented on a change in pull request #13813: [WIP] examples with
opencv4/origami
URL: https://github.com/apache/incubator-mxnet/pull/13813#discussion_r247355210
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File path:
contrib/clojure-package/examples/neural-style/src/neural_style/core.clj
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@@ -41,63 +40,63 @@
(def model-path "model/vgg19.params")
(def max-long-edge 600) ;; resize the content image
(def style-weight 1) ;; the weight for the style image
-(def content-weight 5) ;; the weight for the content image
-(def blur-radius 1) ;; the blur filter radius
+(def content-weight 3) ;; the weight for the content image
+(def blur-radius 5) ;; the blur filter radius
(def output-dir "output")
(def lr 10.0) ;; the learning rate
(def tv-weight 0.01) ;; the magnitude on the tv loss
(def num-epochs 1000)
-(def num-channels 3)
-(defn image->ndarray [simg]
- (let [h (img/height simg)
- w (img/width simg)
- pixels (img/get-pixels simg)
- ;; normalize the pixels for vgg19
- rgb-pixels (reduce (fn [result pixel]
- (let [[rs gs bs] result
- [r g b _] (pixel/unpack-pixel pixel)]
- [(conj rs (- r 123.68))
- (conj gs (- g 116.779))
- (conj bs (- b 103.939))]))
- [[] [] []]
- pixels)]
- (println "The resized image is size " {:height h :width w})
- (-> rgb-pixels
- (flatten)
- (ndarray/array [1 num-channels h w]))))
+;;;;
+; IMAGE MANIPULATION
+;;;;
+
+(defn image->ndarray
+ "normalize the pixels for vgg19"
+ [simg]
+ (let [h (.height simg) w (.width simg)]
+ (println "The nd image size is:" {:height h :width w})
+ (-> simg
+ (cv/convert-to! cv/CV_8SC3 0.5)
Review comment:
its scaling the bytes to match the new format. (-128 > 128 instead of 0 >
255)
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