Method for quantitatively analyzing plant nutrient content index based on leaf image characteristics
A plant nutrition and image feature technology, applied in the field of plant nutrition, can solve the problems of lack of versatility, high cost, long cycle, etc., and achieve the effect of strong versatility and adaptability, fast detection speed and simple process
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Problems solved by technology
 Take the rubber tree as an example for detection.
 1. Build a standard agrochemical model
 The rubber tree is deficiently cultured according to the magnitude standard, and then a representative sample leaf 2 is collected; the leaf is fixed on a white background cardboard 1 under the condition of daily indoor light source, and the background is covered with a transparent cylinder 3 capable of covering the background area Cardboard 1, and then use an image acquisition device to shoot vertically to the background cardboard to collect the image of the sample leaf; use an iterative method to calculate the global threshold, divide the image into two parts, the background and the leaf area according to the global threshold, and calculate the minimum rectangular bounding box, which is divided into Outer, middle and inner sub-regions of equal area (such as image 3 ); each effective pixel RGB value of the three sub-regions is transformed into an HSB value by IHS...
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