faq on graphics conversion

Hello Arseniy. Sun 21 Feb 01 Arseniy Astapenko -> All: It would have been better to call it 'Young Specialist Course' ;))) Thank you for your attention.

Hello, All! Maybe someone has a more recent version? === I quote the file GFX_FAQ.TXT === ─ Area: Good old ZX Spectrum ────────────────────── ────────────────────── Msg#: 11 Date: 09 May 97 19:49:32 From: Igor Gruzdev Read: Yes Replied: No To: All Mark: Subj: FAQ on converting IBM or AMIGA graphics to ZX-SPECTRUM ─────────────────── ──────────────────── ─────────────────── ──────────────────── Hello, All! How to convert graphics from IBM or Amiga to Spectrum ┌ │Slava Mednonogov (2:5030/461.12): Here a letter came from a guy - he asked how to convert it efficiently graphics ibm2zx (ny, or amiga2zx). Based on quality, conversion graphics in most domestic programs is a weak point (a pleasant exception is the intros of Max Romanov). I think it's worth it once Let's look at this problem in detail: a) any more or less decent graph is suitable for conversion. editor (Adobe Photo Shop, Photo Finish (from CorelDraw), Aldus Photo Styler, iPhoto Deluxe, etc.) b) if the original image is color, it must be switched to Gray mode Scale (grayscale). c) then it is desirable to increase the sharpness of the image - Sharpen or even Sharpen More. You may have to do this several timesd) next comes the _obligatory_ increase in contrast in the Brightnes menu & Contrast. Contrast is usually set to 20-60%, brightness according to taste" (from -30 to +30) e) conversion to black and white format (Black & White). For animations and For large graphics it is advisable to choose Pattern, for pictures with small ones details - Diffusion. e) technical details of translation into Hobeta-format and further distillations on the Spectrum are lowered, because There are at least a hundred ways :))) _Control_quality_ of conversion (i.e. correct selection of brightness and The contrast in point (d)) is: - in any picture in large quantities they must be present purely white/pure black colors (if the whole picture is filled with patterns, it is necessary to at least double the contrast); - if there is a pure black color, but no pure white (or vice versa), it is necessary to change the brightness balance; - the presence of rare dots of a different color, where it should be clean black or pure white (you should kill for this :)) - can be treated increasing contrast; - good visibility of image details (if this is not the case, try increase contrast or apply Sharpen/Sharpen Edges or enlarge image [what to do, you always have to sacrifice something]); - when converting animations, it is necessary to apply to all its framesthe same conversion parameters settings. AK>>> Has Autodesk Animator been canceled yet? MR>> it seems that no one remembered about him... I don’t know how it will be suitable for this purpose. The only acceptable (IMHO) tool is Adobe PhotoShop 4.xx, where it is possible to set a macro with subsequent application to any number of pictures. How to do it: 1.Upload one picture, typical for this animation. 2.Select Windows/Action 3.Press the _record_ button (red circle) 4.Next, perform the sequence of conversion actions (see 1e conversion letter) 5.When finished, press the _stop_ button and minimize the resulting macro in one line. 6.Next it’s simple - load all the animation pictures, and apply them to each button _play_, after which save them all. Of course, all this can be done manually, but it’s very confusing. DG> And for 286, PV or ALCHEMY is just right :) The latter, by the way, DG> gives better results when converting to b/w than Photoshop, like me DG> it seemed... As for Alchemy - yes, it gives quite acceptable results. However, please Please note that in PhotoShop, in addition to diffusion and pattern, there is also a mode Halftone Screen conversions with six submodes. If you love me very muchquality :), try them all and play with the parameters - it will be cool however... And as for PV - this is exactly what is _contraindicated_ during conversion :) It’s better than nothing at all than this. As a last resort, use it as a rake. Hint for "robbers" - when using Win'95 _enough_ just click Print Screen and the picture from the screen will go to the clipboard, where you from pick it up with any editor. Almost like in the shadow on Scorpio... ┌ │Max Romanoff (2:5030/221.16): Why do lamers need to convert graphics to high quality? I think those who have something wants to do, find good programs. I can recommend: Deluxe Paint - works very well with animations Personal Paint - image processing and animation Art Departament Pro - Moving from a bunch of formats to another pile ImageFX - various effects and many formats. ... There are still a lot of programs, but with these you can do everything you need. Even in PPaint. Plus, it comes included for FREE. (well, this is for Amiga :) I use the first 2. But only for CONVERSION. I didn't touch on the side creations, although they are both suitable for her too. ┌ │Dmitry Grigoryev (2:5020/689.31): For PC: Photoshop - creation, processing of "flat" images, conversion. COREL DRAW package! - a universal package, can do everything... + 3D, animation, Screen robber, vectorization and much more. But if you have no time or are too lazy to deal with these monsters - ALCHEMY for WIN'95- cuts, scales, converts + easy to learn - no adjustment brightness/contrast, no one knows why... ┌ │Roman Alexandrov (2:5030/446.11): The simplest recipe for people who do not have “fat” pussies: 1) immerse the picture in PV and play with brightness, contrast and color (usually you have to enhance the second one and adjust it to your taste first), cut off the excess (you can’t fit a thick file onto a spec sheet), save. 2) use ALCHEMY to scale the picture (if necessary, usually there is no need to increase it, but it doesn’t make sense to decrease it much) and convert to IMG format (option --g, I think). 3) drag the resulting IMG files onto the spec, load them into SCREENPRINTER and save to a regular screen file. Usually I was able to achieve good results, and porno The one I pulled out of Porn Tetris looked no worse than the ZX-Stag.... By the way, it makes sense to patch the screen printer so that it perceives correctly pictures whose width is not a multiple of 8 bits (so that you don’t have to turn them with your hands "frequency of lines"), it takes 10 minutes of work to figure it out, just because of the years I forgot what exactly to change, the format of the IMG file is simple and self-evident. With all kinds of regards and wishes. Igor. -!- Escaped Convict number 2.50+ ! Origin: ...there's something about this that blows up the world... (2:5030/287.32) ===End quote === Ars. mailto:arseniy@pochta.by