ABSTRACT

Optimizing image quality This chapter focuses its attentions on the standard adjustments made to all images when optimum quality is required. Standard image adjustments usually include the process of optimizing the color, tonality and sharpness of the image. With the exception of dust removal these adjustments are applied globally (to all the pixels) whereas the ‘Image Enhancements’ chapter looks at global and localized adjustments (selecting groups of pixels). Most of the adjustments in this chapter are ‘objective’ rather than ‘subjective’ adjustments and are tackled as a logical progression of tasks. Automated features are available for some of these tasks but these do not ensure optimum quality is achieved for all images. The chapter introduces many features that are dealt with in greater depth in ‘Image Enhancements’.