Why does it take long to browse a folder for the first time?
Why does it take long to browse a folder for the first time? |
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From a newsgroup thread:Q: Why is Xnview faster in displaying thumbs, and why does the speed in CodedColor improve the second time I browse the folder?A: If you are in the Imageview of the Explorer, and the filmstrip at the top displays only 10 thumbs, then only these are created and loaded, until you scroll further. This is different for the Detailsview, which needs ALL files to allow sorting. It must "grab" each file and get infos like filedate, filesize and pixel information, which might take longer for large images.When in Thumbsview, all displayed thumbs must be loaded from the thumbfiles. So if your thumbs are small and you have a large amount of thumbs on the screen, this might take long. Xniew usually has a very small thumbpanel, so only very few thumbs are loaded at a time. In CodedColor, once all the thumbs are created and loaded, then they are cached by the operating system (at least from w2k on), and scrolling becomes very fast.Remember again, that when you first enter a new directory, then the thumb files have to be created on-the-fly, in other words when viewed. So again, if you are in the thumbsview, then a lot of thumbs have to be created, as seen by the filename disappearing at the bottom. The second time you enter this directory (if all thumbs have been created), then you should not experience any significant delay. Our thumb creation is also threaded, so it should be possible to continue work while thumbs are created.Now for a small benchmark with Xnview: When enlarging the thumb panel to show an EQUAL amount of thumbs with the SAME size as in CodedColor, I experienced a shorter loading time of about 30% in Xnview. The drawback in Xnview is: everytime you reenter the directory, you get the same loading time (unless you set the thumb cache option). In CodedColor when you reenter, the loading time is 50% faster than Xnview, because we have created thumb files with a fraction of the size of the originals. So basically, I think we can improve on the topic of "first entry" (to put some erotic into my words), but our thumb concept already has speed advantages over most other applications.
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| • | CodedColor generates thumbs on-the-fly, as the images are viewed in the Explorer. Once the thumbs are created, browsing a folder becomes much faster. |
| • | CodedColor does not store thumbs in a database like Xnview, but as files on your harddrive. This is a more stable but slightly slower technique, which may be subject to change in the future. |
| • | If you have a directory with a lot of images, the image (filmstrip at top) and Screenshow mode are the fastest way of browsing the directory, because only a few thumbs need to be created at once, as opposed to the Detailsview and Thumbsview, where a lot of files are displayed at the same time. |
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CodedColor PhotoStudio by 1STEIN is an award-winning Windows photo viewer and editor to organize, edit, resize, reformat, correct, compare, sort, watermark, annotate and print digital images, and to edit EXIF and IPTC data in digital photos. You can rename multiple images, remove scratches, stich panoramas, convert RAW photos (from Canon, Nikon, Olympus, etc. cameras), burn digital watermarks, correct colors, batch convert and correct images and generate a web album in HTML5. The software is easier to use than Photoshop, but more versatile than ACDSee, Picasa, Irfanview or Gimp. Many magazines consider it to be the Swiss Knife of Image Editing. Have a look at our Before / After tutorials to get an idea of the powerful capabilities. The software comes with a detailed handbook and a fast database to store EXIF/IPTC data and color information. CodedColor PhotoStudio is the ideal image editing tool for every-day and professional digital camera users. The user friendly interface combines features like expert photo editing & printing, layer editing, web album galleries, slide shows, photo management & cataloging, custom sorting, IPTC & EXIF editor, GPS tagging, perspective correction, barrel distortion, effects, thumbnail generation, resize & resample images, batch conversion, database keyword searching, red eye removal, color/sharpness/brightness & contrast correction, artifact removal, clone brush, scanner & TWAIN import, screen capture, lossless JPEG rotation, transparency (alpha channel) and layers, gamma correction, screen shows with many transition effects, watermark text, image annotations, panorama stitch & animation, video capture, PDF album export, photo layouts, collages, frames, shadows, histograms, automatic white balance, photo sharing, etc. Opens and converts all common image formats: BMP, WMF, GIF, JPEG, JPEG2000, TIFF, PCX, PNG, PSP, PSD, PCD, HEIC, HEIF, AVIF and all current RAW formats. The installation includes our the CodedColor Publisher, a versatile photo layout and DTP tool to create individual and rich photo books. |