平衡是視覺藝術中一項重要的構圖原則，因為它能將畫面中分散的元素統整起來，使得各個元素所造成的知覺強度或張力（tensions）能在平衡中心相互制衡，進而成為一個有秩序的整體，因此以往文獻對於平衡與美感偏好的關係有諸多論述。本研究目的在於以幾何圖像探討平衡性與美感偏好的知覺歷程。參考Wilson與Chatterjee（2005）的研究成果，本研究以幾何圖像為對象，除了對其實驗加以重複驗證，以及進行更深入的分析，並進一步將畫面元素的明暗納進來一併探討。本研究包括四項實驗，實驗一和實驗二皆採用二值化圖像探討平衡度及美感偏好度，實驗三和實驗四則是採用灰階圖像探討平衡度。實驗一探討圖像中元素位置的分布如何影響個體知覺到的整體平衡度，並根據分析結果以改進Wilson與Chatterjee的算則。實驗二探討圖像中元素分布位置之不同如何影響個體的美感偏好度，並探討偏好度與各項平衡指標的關係。實驗三探討圖像中元素的不同灰階是否影響個體知覺平衡度。實驗四則是以實驗三為基礎，進一步操弄畫面中元素的灰階變化，以觀察元素分布位置與灰階對整體平衡度知覺所造成的影響，並檢視改進後的算則是否更能有效預測主觀平衡度。結果指出，採用二值化圖像探討平衡度及美感偏好時，重心偏離度指標和四項軸對稱指標平均對於主觀平衡度均有極佳的預測力。然而，八項對稱指標平均對於主觀美感偏好有較佳的預測力。灰階的主要效果達顯著，支持先前灰階會影響主觀平衡度的想法。最後，將灰階權重納入算則後，大部分客觀平衡性指標對於主觀平衡度的預測力均有增加，然而其差異僅在重心偏離度指標達顯著。基於本研究結果，各分項指標對於主觀平衡度的預測力不盡相同，因此在發展預測主觀平衡度的指標時，應對各分項指標賦予不同的權重。然而，在尚無足以預測美感偏好之最佳指標的情況下，Wilson 與Chatterjee （2005）所發展出的八項對稱指標平均對其的預測力仍是最佳的。最後，研究者建議未來在從事相關研究時，應將影響平衡的因子一併納入考慮。 / Balance is an important compositional principle in visual arts. Balance gives unity to an image with separate elements, allowing them to produce visual forces and tensions that compensate for each other, and then becoming a whole with order. Previous research has provided plenty of discussions on the relationship between balance and aesthetic preference. The purpose of this study was to investigate the perceptual process of balance and aesthetic preference in geometric images. Based on Wilson and Chatterjee (2005), geometric images were used again to reexamine their proposal more thoroughly and study the balance and aesthetic preference further taking grayscale into consideration. In this study, four experiments were conducted. Binary images were used in Experiments 1 and 2. Experiment 1 was aimed to test the effects of element distribution on perception of balance and further improve the algorithm proposed by Wilson and Chatterjee (2005). Experiment 2 was intended to investigate how element distribution affects aesthetic preferences and how each measure of balance is related to aesthetic preferences. In the Experiments 3 and 4, grayscale images were used instead. The goal of Experiment 3 was to test whether grayscale affects the perception of balance. Experiment 4 manipulated grayscale levels based on the results of Experiment 3. The goal of this experiment was to observe the effects of element distribution and grayscale levels on balance perception and examine whether introducing the grayscale weight into the algorithm could help predict subjective perception of balance. Results showed that for binary images, deviation of center of weight and the average of symmetry measures along four principal axes were good predictors for subjective balance rather than the average of eight symmetry measures. In contrast, aesthetic preferences were better predicted by the average of the eight measures of symmetry. The main effect of grayscale was significant, supporting the hypothesis that grayscale contributes to the subjective perception of balance. Finally, after the grayscale weight was included in the algorithm, most objective measures of balance improved predicting power for subjective perception of balance, but the difference was significant only for deviation of center of balance. According to the findings of this research, it is suggested that the weight of four measures of inner and outer symmetry should be reduced when applying to predict the perceived balance because including them lowered the predicting power. As to aesthetic preferences, the average of the eight measures of symmetry introduced by Wilson and Chatterjee (2005) was still a better index for predicting aesthetic preferences. Finally, this study suggested that future researchers should consider other factors which also affecting balance perception and evaluate their effects respectively.
| Identifer | oai:union.ndltd.org:CHENGCHI/G0099752010 |
| Creators | 林幸蓉 |
| Publisher | 國立政治大學 |
| Source Sets | National Chengchi University Libraries |
| Language | 中文 |
| Detected Language | English |
| Type | text |
| Rights | Copyright © nccu library on behalf of the copyright holders |
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