On 1/28/17, Ray_Net <[email protected]> wrote: > [email protected] wrote on 28-01-17 15:27: >> Ray_Net wrote: >>> I have a big image 1852 pixels x 1852 pixels >>> >>> When I use in html <img alt="xxxx" src="logo.jpg" height="79" >>> width="79" border="0"/> >>> >>> The rendering by SM is superb >>> >>> BUT using this have a side effect that when the end-user have this >>> picture on the web-page ... He downloaded the original picture >>> 1852x1852 which is 2.042 KB >>> >>> >>> To avoid this, I use Irfanview to shrink the picture to a 79 pixels x >>> 79 pixels so the end-user download this modified picture which is 14 >>> KB >>> >>> And the rendering of this picture <img alt="xxxx" >>> src="logo-small.jpg" height="79" width="79" border="0"/> by SM is >>> poor. >> >> I wonder if perhaps the "79x79" image is actually being displayed at >> more than 79x79 pixels on screen, giving better quality. Do you have >> the zoom in SeaMonkey set to 100%? Or are you using a high-DPI >> monitor? I'm not sure if certain CSS styling or other things might >> also affect the scaling. >> >> If, for example, SeaMonkey's zoom was set to 200%, I'd expect that >> image to be displayed at 158x158 pixels. A large image scaled down to >> 158x158 pixels for display, is going to look better than a 79x79 pixel >> image scaled up to 158x158. >> > The zoom was and is always at 100% > I have used 79x79 because I have other "logo" on the same line, so each > logo have the same height 79. > You can see the result at the end of this page: > http://www.randoevasion.be/index.php?lang=fr >>> Is it possible that SM download the logo.jpg picture - then applied >>> the reduction to 79x79 - then save this new file somewhere - before >>> showing it in the final page ? >>> >>> Can I retrieve this picture.file ? Or have you another bright idea ? >> >> As others have mentioned, the scaling algorithm used in your image >> editor can have an impact on the final quality. >> >> If you want to capture the image SeaMonkey actually displays, you >> should be able to press "Print Screen" on the keyboard and paste into >> an image editor. Or some image editors have a screen-capture function >> within the application (GIMP does, at File > Create > Screen Shot, I >> don't know about Irfanview). Then crop the screen capture to just the >> image you want and save it. You'll also find out that way whether it's >> really being displayed at 79x79 pixels on screen or something more. >> > I had used this method PrtSc but the result was poor.
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