CU Amiga Super CD-ROM 16

home *** CD-ROM | disk | FTP | other *** search

/ CU Amiga Super CD-ROM 16 / CU Amiga Magazine's Super CD-ROM 16 (1997-10-16)(EMAP Images)(GB)[!][issue 1997-11].iso / CUCD / Graphics / PicManager / Help / BIL.HLP < prev next >

Wrap

Text File | 1997-07-21 | 13KB | 400 lines

IMAGE PROCESSING ================ The image processing context is opened via PROCESS from the popup menu. The following functions will be available: * Info Displays short information about the currently selected saver or image processing module. * View Displays the graphic on the screen. * Load Loads a new graphic. * Save Saves the currently loaded graphic in the selected file format which is also possible via double-clicking on the specific file format's name. * Execute Applies the selected image processing operation to the graphic. For more information see description of the single image processing modules. * Viewmode Changes the screen mode of the current graphic. * Quit Leaves the image processing context. Restrictions: The settings for 8Bit-display and 24Bit-display from the configuration menu of the display drivers will not influence the image processing context. When AGA/ECS drivers are active 24 BIT graphics will always be displayed in grey scales. Colour displays of 24 BIT graphics from the image processing function are only possible with a graphic card driver. Image processing operators -------------------------- PMPro's image processing module contains a bunch of functions which allow nearly any possibility imaginable for manipulating your graphic. A small overview of image processing functions of PMPro are as follows. The column colour depth specifies which colour depths can be handled by the corresponding operator. For example some operators do need 24BIT data as input. In such a case graphics with less colours have to be converted to 24 BIT with the function "AnyTo24Bit" beforehand. NOTE: HAM-graphics will only be correctly processed by the AnyTo24Bit operator. When processing HAM graphics these have to be converted to 24 Bit beforehand! Operator Function Colour depth XOR playing around with effects 1..8 BIT 24BitToHAM dithers 24 Bit to HAM6/HAM8 24 BIT Dither24Bit dithers 24 Bit to 2..256 colours 24BIT AnyTo24Bit converts to 24 Bit 1..8BIT,HAM Crop crops shapes of graphics 1..8,24BIT HilbertDither256 dithers to black & white 1..8BIT ExtractGrayScales converts to grey scales 1..8,24BIT ExtractRed extracts red values 1..8,24BIT ExtractGreen extracts green values 1..8,24BIT ExtractBlue extracts blue values 1..8,24BIT TopToBottom vertical mirroring 1..8,24BIT LeftToRight horizontal mirroring 1..8,24BIT Rotate rotate by 90/180/270 degrees 1..8,24BIT Scale50 change size by 50% or 200% 1..8,24BIT CallPNM call external PBM/PGM/PPM tools 1..8BIT,24BIT OptimizePalette optimise palette (reduce redundancy) 1..8BIT EdgeDetect detect edges... 24BIT Sharpen sharpness adjustment 24BIT Blur Blur-filter 24BIT DitherFix24 colour reduction to 16/256 colours 24BIT with fixed palette Convolve Convolution matrix (various 24BIT effects like Emboss, etc.) ScaleFree freely scaling of a graphic 1..8,24BIT RGBAdjust changing RGB values 1..8,24BIT Gamma Gamma correction 1..8,24BIT Brightness brightness adjustment 1..8,24BIT Contrast adjusting contrast 24BIT Mosaic Mosaic-effect 1..8,24BIT Tiling Mosaic-effect derivative 1..8,24BIT Slicing Mosaic-effect derivative 1..8,24BIT Emboss Emboss-filter 1..8,24BIT Complement Negative-effect 1..8,24BIT Antique Antique-effect 1..8,24BIT Diffuse random pixel spreading 24BIT HighPass highpass filter 24BIT Motion_Blur motion sharpness effect 24BIT OilPaint oilpainting effect 24BIT Threshold conversion to black & white 24BIT Bentley random pixel spreading derivative 24BIT DeepPress deep press effect 24BIT Autoborder Removes single-coloured areas 1..8, 24BIT RotateFree freely rotate graphics 24BIT PaletteDither Dithers to a given palette 24BIT REFERENCE: ---------- XOR --- Colour depth: 1..8 BIT Options : Value between 0 and 255 Function : Playing around with effects 24BitToHAM ---------- Colour depth: 24 BIT Options : HAM6 or HAM8 Function : dithers 24BIT to HAM6/HAM8 Dither24Bit ----------- Colour depth: 24 BIT Options : Corresponding Colour depth in Bitplanes, dither-method Function : dithers 24 BIT to 2..256 Colours with a given dither-method like Floyd, Burkes, Ordered or Bestpen. AnyTo24Bit ---------- Colour depth: 1..8 BIT, HAM Options : none Function : Converts any graphics to 24 BIT (necessary for some operators) Crop ---- Colour depth: 1..8, 24 BIT Options : x- and y-offset, width and height (in pixel) Function : crops shapes of graphics HilbertDither256 ---------------- Colour depth: 1..8 BIT Options : Background colour: black or white Function : dithers to black & white ExtractGrayScales ----------------- Colour depth: 1..8, 24 BIT Options : corresponding colour depth: 1..8 Bitplanes Function : converts to greyscales ExtractRed ---------- Colour depth: 1..8,24 BIT Options : none Function : extracts red values from graphics ExtractGreen ------------ Colour depth: 1..8,24 BIT Options : none Function : extracts green values from graphics ExtractBlue ----------- Colour depth: 1..8,24 BIT Options : none Function : extracts blue values from graphics TopToBottom ----------- Colour depth: 1..8,24 BIT Options : none Function : vertical mirroring LeftToRight ----------- Colour depth: 1..8, 24 BIT Options : none Function : horizontal mirroring Rotate ------ Colour depth: 1..8, 24 BIT Options : 90, 180 or 270 Degrees Function : rotate graphics Scale50 ------- Colour depth: 1..8, 24 BIT Options : Mode: Double or Half Function : change size of graphics (double or half size) CallPNM ------- Colour depth: 1..8, 24 BIT Options : PNM command (with full path) and options Function : call external PBM/PGM/PBM tools. For example enter work:pnmscale for command and -xscale 2.0 for options. OptimizePalette --------------- Colour depth: 1..8 BIT Options : none Function : reduce redundancy colours in your colour palette EdgeDetect ---------- Colour depth: 24 BIT Options : none Function : matrix operation, which detect edges in your picture. If you apply the exractgreyscales-Operator after this, you get a LINEART-effect Sharpen ------- Colour depth: 24 BIT Options : strength 1 to 100 Function : This operator sharpens an image. Blur ---- Colour depth: 24 BIT Options : strength 1 to 100 Function : Applies a blurring filter. DitherFix24 ----------- Colour depth: 24 BIT Options : 4BIT grey or 8BIT colour Function : Colour reduction to 16 greyscales / 256 colours with a fixed palette. Convolve -------- Colour depth: 24 BIT Options : Matrix, add and division-factor Function : Applies convolution matrix with various effects. Convolutions can perform many different image processing functions by varying the values comprising the convolution matrix. Determining the values to use in the convolution matrix requires much experimentation or a knowledge of image processing theory. To save you from this, we provide a lot of example matrices you can use or change it. Try it out! ScaleFree --------- Colour depth: 1..8, 24 BIT Options : X- and Y-scale factor in percent or new size (in pixel) Function : This operator scales a graphics freely between 20% and 200% of its original size or to a given new size (in pixel). RGBAdjust --------- Colour depth: 1..8, 24 BIT Options : RGB-Values to increase or decrease Function : Changing the RGB-components of a graphics for various colour effects. Gamma ----- Colour depth: 1..8, 24 BIT Options : Red, green and blue gamma correction value Function : Allows Gamma correction of a graphics for each colour component (RED, GREEN or BLUE) Brightness ---------- Colour depth: 1..8, 24 BIT Options : Value to increase or decrease brightness Function : Brightness adjustment Contrast -------- Colour depth: 24 BIT Options : Value to increase or decrease contrast Function : Contrast adjustment Mosaic ------ Colour depth: 1..8, 24 BIT Options : size of the blocks in pixel Function : Divide graphics into square blocks, known as mosaic-effect. Tiling ------ Colour depth: 1..8, 24 BIT Options : blocksize 1..10 Function : Tiles an image into many blocks. A block size of 10 gives a great effect. Slicing ------- Colour depth: 1..8, 24 BIT Options : none Function : Slices up an image into horizontal an vertical strips. Emboss ------ Colour depth: 1..8, 24 BIT Options : none Function : Applies an Emboss-Filter. Applying the EtractGreyScales Operator after Emboss will enhance the effect. Complement ---------- Colour depth: 1..8, 24 BIT Options : none Function : Negative effect. Antique ------- Colour depth: 1..8, 24 BIT Options : Output colour depth in Bitplanes Function : Change the colours of a graphics to an antique colour map. Diffuse ------- Colour depth: 24 BIT Options : Strength 1 to 100 Function : This operator creates an effect as if the image was exploded pixel by pixel HighPass -------- Colour depth: 24 BIT Options : Strength 1 to 100 Function : Applies a HighPass-Filter for interesting "painted colours" effects. A strength of 10 gives a negative effect, a strength of 99 gives a real colourful effect. Motion_Blur ----------- Colour depth: 24 BIT Options : Strength 1 to 100 Function : Motion unsharpen effect. OilPaint -------- Colour depth: 24 BIT Options : Strength 1 to 16 Function : A great painting effect. This take a lot of time, because this effect is very complex. Threshold --------- Colour depth: 24 BIT Options : Threshold colour 1 to 255 Function : Conversion to black & white without dithering Bentley ------- Colour depth: 24 BIT Options : none Function : An effect that makes the image look ghostly. DeepPress --------- Colour depth: 24 BIT Options : Strength 1 to 100 Function : Creates an chiselled effect on an image. AutoBorder ---------- Colour depth: 1..8,24 BIT Options : none Function : Removes single-coloured areas around the actual graphics. RotateFree ---------- Colour depth: 24 BIT Options : angle between 1 and 359 degrees, coordinate point Function : This operator allows to freely rotate graphics by specifying an angle and a co-ordinate point. By selection of size adjustment, the graphics will also be enlarged according to the rotation, so that it will still be fully visible. When not selecting this some parts of the graphics may be cut off. PaletteDither ------------- Colour depth: 24 BIT Options : colordepth, colour palette Function : This operator allows you to dither 24 Bit graphics to a given, fixed palette. Just select an IFF file with the required palette. Now your graphics will be dithered to 2..256 colours and has exactly the desired colour palette. This function is quite nice for combining different graphics with an image program, which does not work in 24 Bit (e.g. DPaint).