IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM

• Main Author: SETO TAKAHIRO
• Format: Patent
• Language: English; Japanese
• Published: 17.11.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

To evaluate uneven brightness resulting from a situation where an object to be measured is not uniformly coated with a coloring material.SOLUTION: An image processing apparatus acquires first photographic image data obtained by photographing an object to be measured in a first geometric condition and second photographic image data obtained by photographing the object to be measured in a second geometric condition different from the first geometric condition. The image processing apparatus compares a feature quantity obtained from the first photographic image data and a feature quantity obtained from the second photographic image data with each other. The image processing apparatus derives an evaluation value indicating the degree of uneven brightness of the object to be measured based on a result of comparison.SELECTED DRAWING: Figure 4 【課題】被測定物が色材で均質に覆われていないことに起因する光沢むらを評価する。【解決手段】第１の幾何条件で被測定物を撮影した第１の撮影画像データと、第１の幾何条件と異なる第２の幾何条件で前記被測定物を撮影した第２の撮影画像データとを取得する。第１の撮影画像データから得られた特徴量と第２の撮影画像データから得られた特徴量とを比較する。比較結果に基づいて被測定物の光沢むらの程度を示す評価値を導出する。【選択図】図４