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wiki:v2:some_tips_on_generating_color_signatures_2

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wiki:v2:some_tips_on_generating_color_signatures_2 [2018/05/28 20:48]
jfrench minor edit
wiki:v2:some_tips_on_generating_color_signatures_2 [2018/09/28 19:58] (current)
jfrench Imported by DokuWiki Advanced Plugin
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 You can adjust all seven color signatures this way to maximize detection accuracy. Be sure to press **Apply** or **OK** to save the slider ranges! The adjusted values won't be saved if you press **Cancel** or dismiss the dialog. You can adjust all seven color signatures this way to maximize detection accuracy. Be sure to press **Apply** or **OK** to save the slider ranges! The adjusted values won't be saved if you press **Cancel** or dismiss the dialog.
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 +==== Adjust minimum frames per second ====
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 +Adjusting the **Min frames per second** slider in the **Camera** tab to smaller values can improve the image quality by reducing the noise and/or improving the exposure in low-light environments. ​ The disadvantage of reducing the frames per second is that it reduces Pixy2'​s update rate.  ​
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 +{{wiki:​v2:​image_506.png}}
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 +The two pictures below show a low-light scene and the reduction in noise by reducing the frames per second. ​ (The left frame is higher fps, more noise.)
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 +{{wiki:​v2:​image_507.png?​350|Higher fps, more noise}}
 +{{wiki:​v2:​image_509.png?​350|Lower fps, less noise}}
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 +
 +==== Increase block filtering ====
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 +Pixy2 uses filtering to determine if a given block is likely to be valid or just a false positive detection. ​ Increasing the **Block filtering** in the **Expert** tab can reduce the number of false positive detections. ​ The cost of increasing the block filtering is longer latency when detecting new objects. ​ That is, it will take Pixy2 longer to report detection of a new object and add it to the list of tracked objects. ​ Once an object is added to Pixy2'​s list of tracked objects, the position of each object is not filtered so that the dynamics of the object'​s reported position/​motion isn't affected.  ​
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 +{{wiki:​v2:​image_522.png}}
  
  

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wiki/v2/some_tips_on_generating_color_signatures_2.txt · Last modified: 2018/09/28 19:58 by jfrench