With your permission, I'd like to make an animated .GIF that... shows your warp and color compression effects.
Since this animation is a demonstration of different parameter values controlling the image -- rather than an artistic image -- I took the liberty of annotating each frame of the annotation with the effect that the various parameter sets are creating. I made the GIF animation, but it has a severe problem that I'm unable to fix -- it's dithered. Perhaps there's a bug in the older version of Macromedia Fireworks I'm using, or my understanding of how to control the output of the program is insufficient. I told the program: - to do *no* dithering, - to retain the images' original dimensions, - to not remove unused colors, - to allow 0% loss in GIF compression, - to not crop the frames, - to use an exact color map, and - to not add transparency to the color map. - to do *no* resampling, - and I unchecked the preference: "Faster, but less accurate resampling" but despite this, Fireworks dithered the colors in the images. They look terrible. My best guess is that Fireworks changed the original GIF images to an internal format [perhaps .PNG(?)] and then back to .GIF encoding to write the output file, and dithering the images in the process. I don't recall having this problem before. I'm providing a screen capture of the settings in Fireworks' animated GIF creation wizard: http://tinyurl.com/Animated-GIF-wizard-settings or: http://www.emarketingiseasy.com/Albrecht/MFR_13/150114_Warp_Demo/Fireworks-a nimated-GIF-wizard-settings.jpg It shows that apparently only 89 colors of the original 256 colors in the color map happen to have been selected by the samples [pixels] calculated by Albrecht's program in the five images, so the program decided it could be efficient and choose to use a 128 entry GIF color table in the output animated GIF. It may be that each of the original five Fractint images also were encoded with this size color table/map. [Anyone have any ideas about how to stop Fireworks from dithering the GIF output?] However, I decided to make the animation available anyway, http://tinyurl.com/Warp-Demo-Animation or: http://www.emarketingiseasy.com/Albrecht/MFR_13/150114_Warp_Demo/Warp-Demo-A nimation.gif since it still does show Albrecht's warping and color compression effects clearly -- despite the unwanted dithering. I recommend viewing the animation's images at full size so you can't suspect your browser of doing averaging or dithering of the images... Sequence of Images in Animation ------------------------------- 1. "Warped" 2. Without "3d"-like perspective distortion. 3. Without color compression. 4. Both warping & color compression disabled. 5. Complete spectrum of the map in the image. I believe that the "4. Both warping & color compression disabled" image is the original 'unaltered' image. - Hal Lane ######################## # hallane@earthlink.net <mailto:hallane%40earthlink.net> ########################
-----Original Message----- From: Fractint [mailto:fractint-bounces@mailman.xmission.com]On Behalf Of Niekamp Sent: Thursday, January 15, 2015 10:02 AM To: Fractint and General Fractals Discussion Subject: Re: [Fractint] Warp Effect Demo
Am 15.01.2015 um 14:12 schrieb Hal Lane:
With your permission, I'd like to make an animated .GIF that automatically does the stepping thru your images and make it available on the list. Brilliant idea! Thrilled... Petta
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