Original images retain their size regardless of the HiDPI setting. There is currently no warning for thumbnail images not being big enough to generate a HiDPI thumbnail. Note, if the original image is not large enough to support the HiDPI slide image size then a small yellow warning triangle will appear at the top right of the thumbnail image. This is to support displays that have a higher pixel density than standard, for example 326 pixels per inch instead of 72ppi. When checked the images will be scaled to twice the size set by the image bounds, providing the original is big enough, but the album will display images as set by the image bounds. This field is disabled if ‘ Settings/Pages/Image linking from thumbnails’ is set to Link to originals. Images will be scaled so that neither the width nor height exceeds the set limits. Sets the limits for scaled-down images, width x height in pixels. 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.
#ADDING GPS TO IMAGE JALBUM SKIN#
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.
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