RE: lingo-l get and set pixel.
same here.. with some thinking and tweeking you can do a wide variety of IL effects which are fast enough to use in realtime. Some very good examples on copypixel effect to be found at the lingo workshop: http://www.lingoworkshop.com/code/imageFX.php J. -Oorspronkelijk bericht- Van: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Alex da Franca Verzonden: donderdag 15 juli 2004 21:10 Aan: [EMAIL PROTECTED] Onderwerp: Re: lingo-l get and set pixel. At 20:36 Uhr +0300 15.07.2004, thor wrote: I am not sure what you mean by ink modes in copypixels. Any examples? it depends on what you're after with the: At 13:47 Uhr +0100 14.07.2004, thor wrote: rgbval = member(firstImg).image.getPixel(xx, yy) -- some calculations here and then member(secondImg).image.setPixel(xx,yy, newrgbval) '-- some calculations here and then' the simplest example would be copying a black image with reverse ink to reverse the image. but you can also isolate colors with not reverse ink or achieve other results when using different inkmodes after another. you can also desturate by copyPixeling into a #grayscale image or posterize by copypixeling into an 8 bit image with a custom palette. there is so much possible in director since the introduction of IL, that it is for me the top feature, which was ever added to director. I can't imagine working a single day without an IL operation. -- ||| a¿ex -- [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!] [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!]
RE: lingo-l get and set pixel.
I am not sure what you mean by ink modes in copypixels. Any examples? Here ya go: destImg.copyPixels(srcImage,destRect,srcRect,[#ink: 36]) The above applies ink 36 (bgtrans) to the copyPixels operation, there are many options you can use here (blend levels, masking options, and more). This one is actually in the documentation! To be safe, I checked the MX docs before saying that last bit... ;) Cheers, Tom Higgins Product Manager - Director Team Macromedia ... [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!]
Re: lingo-l get and set pixel.
At 20:36 Uhr +0300 15.07.2004, thor wrote: I am not sure what you mean by ink modes in copypixels. Any examples? it depends on what you're after with the: At 13:47 Uhr +0100 14.07.2004, thor wrote: rgbval = member(firstImg).image.getPixel(xx, yy) -- some calculations here and then member(secondImg).image.setPixel(xx,yy, newrgbval) '-- some calculations here and then' the simplest example would be copying a black image with reverse ink to reverse the image. but you can also isolate colors with not reverse ink or achieve other results when using different inkmodes after another. you can also desturate by copyPixeling into a #grayscale image or posterize by copypixeling into an 8 bit image with a custom palette. there is so much possible in director since the introduction of IL, that it is for me the top feature, which was ever added to director. I can't imagine working a single day without an IL operation. -- ||| a¿ex -- [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!]
Re: lingo-l get and set pixel
I am using this code similar to this : repeat with xx = 1 to 450 repeat with yy = 1 to 400 rgbval = member(firstImg).image.getPixel(xx, yy) -- some calculations here and then member(secondImg).image.setPixel(xx,yy, newrgbval) end repeat end repeat This is all working fine, except how slow it is. It helps to cache slow stuff. like getting a member is slow. And getPixel and setPixel is slow aswell. for normal image copy stuff, check copyPixels in the manual, and some inks can be useful. if you need to work down at pixellevel I would recode the loop something like this: vImg1 = member(firstImg).image vImg2 = member(secondImg).image repeat with xx = 1 to 450 repeat with yy = 1 to 400 rgbval = vImg1.getPixel(xx,yy) -- some calculations here and then vImg2.setPixel(xx,yy, rgbval) end repeat end repeat HTH/Christoffer [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!]
Re: lingo-l get and set pixel
Hi, dunno how much it slows, but use an instance e.g. myImage = member(firstImg).image repeat with xx = 1 to 450 repeat with yy = 1 to 400 rgbval = myImage.getPixel(xx, yy) -- some calculations here and then myImage.setPixel(xx,yy, newrgbval) end repeat end repeat Hth Berndt Hi List I am reading an image and drawing some of the pixels onto another image cast member. I am using this code similar to this : repeat with xx = 1 to 450 repeat with yy = 1 to 400 rgbval = member(firstImg).image.getPixel(xx, yy) -- some calculations here and then member(secondImg).image.setPixel(xx,yy, newrgbval) end repeat end repeat This is all working fine, except how slow it is. Do you have any tips on how to fasten this process? (is there any way of analysing an image object quicker than this with imaging lingo?) thanks for all answers t [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!] [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!]
RE: lingo-l get and set pixel
What are you exactly trying to do? some things can better be done with copypixels and some other creative use of imaging lingo features. Get and set pixel is very slow. Caching the image objects will speed things up, but not to such an extend that it will enable you to do things realtime. J. -Oorspronkelijk bericht- Van: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Christoffer Enedahl Verzonden: woensdag 14 juli 2004 13:55 Aan: [EMAIL PROTECTED] Onderwerp: Re: lingo-l get and set pixel I am using this code similar to this : repeat with xx = 1 to 450 repeat with yy = 1 to 400 rgbval = member(firstImg).image.getPixel(xx, yy) -- some calculations here and then member(secondImg).image.setPixel(xx,yy, newrgbval) end repeat end repeat This is all working fine, except how slow it is. It helps to cache slow stuff. like getting a member is slow. And getPixel and setPixel is slow aswell. for normal image copy stuff, check copyPixels in the manual, and some inks can be useful. if you need to work down at pixellevel I would recode the loop something like this: vImg1 = member(firstImg).image vImg2 = member(secondImg).image repeat with xx = 1 to 450 repeat with yy = 1 to 400 rgbval = vImg1.getPixel(xx,yy) -- some calculations here and then vImg2.setPixel(xx,yy, rgbval) end repeat end repeat HTH/Christoffer [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!] [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!]
Re: lingo-l get and set pixel
At 13:55 Uhr +0200 14.07.2004, Christoffer Enedahl wrote: I am using this code similar to this : repeat with xx = 1 to 450 repeat with yy = 1 to 400 rgbval = member(firstImg).image.getPixel(xx, yy) -- some calculations here and then member(secondImg).image.setPixel(xx,yy, newrgbval) end repeat end repeat This is all working fine, except how slow it is. It helps to cache slow stuff. like getting a member is slow. And getPixel and setPixel is slow aswell. for normal image copy stuff, check copyPixels in the manual, and some inks can be useful. if you need to work down at pixellevel I would recode the loop something like this: vImg1 = member(firstImg).image vImg2 = member(secondImg).image repeat with xx = 1 to 450 repeat with yy = 1 to 400 rgbval = vImg1.getPixel(xx,yy) -- some calculations here and then vImg2.setPixel(xx,yy, rgbval) end repeat end repeat although this will speed up the handler a little bit, it doesn't do the great benefit you're expecting, since image objects from a member get passed by reference rather than by value. so storing member(firstImg).image in the variable vImg1 will only work as kind of 'shortcut', but anyway it needs to dereference the image data and act (and actualize) the image data in the members image. this is SLOW. as a rule of thumb, every time you do more than one operation on an imageobject always make sure you work on a copy of the imageobject in RAM and NOT on a reference to a members image. modifying the above code to: vImg1 = member(firstImg).image.duplicate() vImg2 = member(secondImg).image.duplicate() repeat with xx = 1 to 450 repeat with yy = 1 to 400 rgbval = vImg1.getPixel(xx,yy) -- some calculations here and then vImg2.setPixel(xx,yy, rgbval) end repeat end repeat member(secondImg).image = vImg2 these *little but very important* changes should speed up the thing noticeably. nonetheless acting on an image object on a per pixel basis will always remain slow. depending on what you're after, there may be other techniques (using inkmodes with copyPixels for example), wjhich are WAY FASTER ! -- ||| a¿ex -- [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email [EMAIL PROTECTED] (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!]
