If you use Medium but your images are high contrast and you are not happy with the scaled images then switch to smooth. It is very similar to Medium in quality but operates slower. Smooth, the default setting, is recommended by jAlbum. It uses an ‘area averaging’ algorithm, or if using hardware acceleration ( Settings/Images/Advanced) bilinear interpolation. Smooth is the slowest, but will give the best result. If the images generated suffer from artefacts try another scaling method.įast uses nearest neighbor interpolation but can result in ‘jagged results’. Disadvantages are the generation of artefacts such as blocking, ringing, moire and blurring. Advantages of each method tends to be that they preserve a specific property, like hard edges. The settings are a trade off between speed and creating processing artefacts, depending on the image being sampled. They affect how your original images get reduced, when linking to scaled-down images, in size to meet the image bounds. There algorithms for scaling images are Fast, Medium and Smooth. A ratio like 10000x800 is commonly used to allow a mix of panoramic images and ordinary images having the same height. This means that you can safely use bounds like 1000x1000 to ensure that neither the width or height goes above 1000.
The bounds fields allows you to enter custom bounds too! jAlbum will never distort the width/height ratio of your images. Sets image quality and size limits for thumbnail and slide images.
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