one of the main factors that cause to quality loss for fresh fruit market apples is bruise damage. amongst the factors that affect apple sensitivity to bruising, major one is drop height and area profile during the impact. in the present study, four iranian apple varieties consisted of atirli, kapak, kowse and paiez that were selected and 100 fruits of each variety were picked up, then apples w...

One of the main factors that cause to quality loss for fresh fruit market apples is bruise damage. Amongst the factors that affect apple sensitivity to bruising, major one is drop height and area profile during the impact. In the present study, four Iranian apple varieties consisted of Atirli, Kapak, Kowse and Paiez that were selected and 100 fruits of each variety were picked up, then apples w...

ABSTRACT- Bruising degrades the quality of fresh apple fruits. Reducing bruise damage is of utmost importance in designing and developing processing equipments. The main objective of the present study was to introduce an analytical method to predict the allowable static load applicable to apple fruits. To predict the strain energy absorbed by the fruit, a point load was applied on the solid sph...

How to identify apple stem-ends and calyxes from defects is still a challenging project due to the complexity of the process. It is know that the stem-ends and calyxes could not appear at the same image. Therefore, a contaminated apple distinguishing method is developed in this article. That is, if there are two or more doubtful blobs on an apple’s image, the apple is contaminated one. There is...

introduction: high percentage of orchard products, such as apples, is wasted due to mechanical damages that cause fruit quality loss. damages due to static or dynamic pressure or impact are among very common mechanical damages that begin to bruise fruits. post-harvest bruise damage is a major cause for the loss in fruit quality. bruising means damaging fruit tissue and consequently physical cha...

Five classifiers including the K-means, Fuzzy c-means, K-nearest neighbour, Multi-Layer Perceptron Neural Network and Probabilistic Neural Network classifiers are compared for application to colour grade classification and detection of bruising of Granny Smith apples. A number of suitable discriminate features are determined heuristically for the categorisation of four classes including: high g...

abstract- the evaluation of leaf area and leaf nutritional value is important for crop growth modeling and estimations of its performance. the purpose of this study was to use image processing techniques to develop an economical method to ease the assessment of nutrient status and leaf area (la) of plants and to compare the outcomes of this method with linear models. leaf area and leaf chloroph...

hadi ghaemi1, ali nobakht2*, sarayen razzaghzadeh1 1-west azarbijan jahad and agriculture faculty, iran 2- maragheh branch, islamic azad university, west azarbaijan, iran      *corresponding author email: [email protected]     received: 1 august 2013  accepted: 21 november 2013       abstract   this experiment was conducted to evaluate the effects of different levels of apple pulp and multi-...

Conventional optical property mapping by spatial-frequency domain imaging (SFDI) is prone to relatively low efficiency due the iterative nature of nonlinear curve-fitting based on light transfer model, such as diffusion approximation equation. This study aims at expediating prediction with high accuracy developing an artificial neural network (ANN) model coupled SFDI. A dataset was first genera...