Sets the limits for scaled-down images, width x height in pixels. Images will be scaled so that neither the width nor height exceeds the set limits. Sets the limits for folder thumbnail images, width x height in pixels. To enable folder images you need to check 'Process folder images', the folder images bounds then become active. If supported they need to be enabled, either by the skin or the user. If the skin does not support them the bounds do not appear in the GUI. Folders boundsįolder image bounds needs to be supported by the skin in use. Sets the limits for thumbnail images, width x height in pixels. A value too high may not result in a significant improvement in quality, but will result in much bigger files. A low value will result in smaller file sizes but may suffer from ‘compression artefacts’. This affects the image quality and file size. A value too high will not result in a significant improvement in quality, but will result in much bigger files. A low value will result in smaller file sizes but may suffer from ‘jpeg artefacts’. If you are using images that are already within the image bounds then sharpening should be set to a low value. Sets the amount of sharpening to be applied to scaled-down images. These are all variations of the standard method and give greater scope for getting the best possible scaled image. With smooth selected, you have access to four additional variations.īlackman-Bessel, Blackman-Sinc, Lanczos and Mitchell. 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. It may also need to be set if linking is not to originals but some originals are included within the album. For example the local album might work but if uploaded to the web the originals will not be accessible. If any originals are being used in the album and this option is not selected then broken links could appear unless the 'true' originals are accessible from the album’s location. If one of the link to originals settings above is selected then checking this will add a full size copy of the original file to the album, and links to the originals point to those copies. In JavaScript based skins like Turtle, turning off Make slide pages will make Turtle run in dynamic mode which makes the slideshow much smoother. Note, that this is only true for the non JavaScript based skins. If not made the thumbnails link directly to the image, visitors would need to use the browser’s back button to get back to the thumbnail images and then select another image to view. ![]() Slide pages allow for navigation between the main images. Note Image effects are not applied to original images.
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