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Working with low resolution images

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T O P I C R E V I E W
yogiyang	Posted - May 18 2014 : 22:56:34 Hello, Would it be possible to work with low resolution images for example @72 DPI and then replacing them with actual high resolution before generating the final output file? Has anyone worked on this line or has any ideas about its possibilities? I am asking this as ImageEn seems to start crawling the moment we start loading high resolution images. Another thing the memory requirements also seems to increase by leaps and bounces. In the software that I am building any file will contain minimum 36 layers (can be as high as 82 layers) from which average 30 layers will contain large size high resolution images captured by professional photographers using professional high end digital cameras. All ideas and suggestions are welcome. TIA Yogi Yang
6 L A T E S T R E P L I E S (Newest First)
yogiyang	Posted - May 26 2014 : 05:26:46 Sorry for the delay in my reply. Here is the code that I use: //Setup for better image viewing on screen ImageEnView1.LayersRotationFilter := ierNone; ImageEnView1.LayersRotationAntialias := true; ImageEnView1.LayersRotationUseFilterOnPreview := True; //PreviewQuality_Delayed_Best ImageEnView1.LayersRotationDelayFilterOnPreview := True; ImageEnView1.ZoomFilter := rffastlinear; Have I to add or remove anything from this? TIA Yogi Yang
xequte	Posted - May 22 2014 : 18:38:49 Hi Yogi Are you using LayersRotationUseFilterOnPreview? This can be slow if you do not enable LayersRotationDelayFilterOnPreview Nigel Xequte Software www.xequte.com nigel@xequte.com
nwscomps	Posted - May 22 2014 : 08:20:47 Try setting the zoom filter to rffastlinear, it should be fast enough. Another solution would be to implement your own moving, rotating and disabling the mouse interact of the viewer. The slowness is due to the fact that imageen update each pixel every time, it has no cache mechanism to store the pixels that do not need to be updated. So for high resolution pictures on slower machines this can be a problem. Francesco Savastano Nwscomps.com Add-ons for the ImageEn Library
yogiyang	Posted - May 22 2014 : 07:13:49 For example Rotating a layer interactively with mouse becomes chunky and tends to jump around. This makes it very hard for anyone to rotate a layer interactively. The same applies to moving layers around. TIA Yogi Yang
nwscomps	Posted - May 22 2014 : 07:00:47 Which operations especially you find to be slow? Depending on the case I could suggest some solutions. Francesco Savastano Nwscomps.com Add-ons for the ImageEn Library
xequte	Posted - May 19 2014 : 02:52:23 Hi Yogi Unfortunately there is no built in functionality for this. In theory you could do it yourself by loading a "display" sized image and maintaining a record of all the changes made to it, to apply en masse when relevant, but it would require quite a significant infrastructure. Nigel Xequte Software www.xequte.com nigel@xequte.com