Photoshop :: How To Map Patterns To Grayscale Ranges Automatically
Feb 14, 2013
Scenario: I am using Photoshop to design aerial maps of cities and countries for an RPG that run. Terrain is created by painting a heightmap and then applying textures to various ranges of greyscale like so:
Black = WaterDk. Gray = SandMed Gray = GrassLt Gray = ScrubWhite = Rock
Examples:
Example 1Example 2
Problem: Right now, in order in order to apply the textures to each specific grayscale band, I have to use Select-> Color Range, and manually make a separate Clipping Mask for each individual texture. While this achieves the desired look, it is time-consuming and does not allow me to simply paint on the heightmap layer and see the various textures fade into view the way they might in UnrealEd, Bryce, etc. I can add an Adjustment Layer with a custom Gradient Map over the heightmap to represent the correct colors (like on a relief map), but what I would really like to do is assign Patterns to the various Color Stops.
Failing that, would there be some way to create individual Pattern Fill layers that each show up for only a specified grayscale range? I can manage this for a single texture by using a Selective Color Adjustment Layer, but the problem is that these look at all layers below them instead of the bottom-most one. (If it matters, I'm using CS3 right now, but hope to upgrade within the next month or two.)
I am in need of a lisp routine which will automatically pick up all hatch and solid hatch patterns within a drawing and change the colour to colour 254.
I've got a surface that displays contours correctly. When I go to Surface Properties-Analysis tab, I can set an arbitrary number of ranges for contours, directions, elevations, slope arrows, etc, and they display correctly.
I can set an arbitrary number of ranges in the slope range box too, but when I click the Analyze button, Civil 3D 2014 hotfix 1 only displays two slope ranges: 0% to 2979736.0077% and 2979736.0077% to 99999900.0001%. (!)
I can not get the slope analysis to come up with 10 slope ranges. My ranges are set to 10, but my Range details populate to 22? Screen Cap included. I've tried this with Equal Interval, Quartile, and Standard Deviation. Nothing will create 10 intervals.
My "slope analysis" surface style is set to show Slope, with the range set to 10. In surface properties, my range is set to 10.
I am developing a plugin that retrieves data from external system and fills the data in text ranges. The text ranges have a "type" associated with it. I want to display the type in illustrator above the text range (like a title), but should not be saved as part of the file - it should be dynamically displayed "for info only". I have seen a plugin doing exactly same thing. See the image below - has been rendered by the plugin I mentioned. The "Type" heading with border appears dynamically. If I switch to another window and switch back, the border and "Type" heading is redrawn. When exported, heading does not appear in the image. When saved, heading does not get saved. There are no additional layers, and the heading is not selectable. How can I achieve the same?
Looks like the heading and border is around the layer that consists of textrange.
What are the ranges for correct skin tones using RGB%? Used to using a scale from 0 to 255. But with LR it's RGB , I know 100% RGB is white. What do you use for %?
The creation of viewframes with automatic station range at scale 1/2000 produces viewframes and sheets with ranges 0+000 - 0+738 then 0+738 - 1+456 and so on.
It is possible to creat onyl 1 viewframe with user specified station range i;e; 0+000 - 0+700. For a long alignment it involves to repeat the operation all along the alignment by ranges of 700 m. Or use the automatic range option and then make boring adjustments on viewframes and long profiles of the sheets to fit to the 700 m successive ranges we would like to draw.
Is there a possibility to produce directly multiple viewframes with a user specified station range of, say, 700 m on the entire alignment. If this is possible it would be great.
More great: would it be possible to set an overlap of 50 m for example between successive viewframes (sheets)ranges so that we have ranges 0+000 - 0+700 then 0+650 - 1+350 then 1+300 -2+000 and so forth.
Is there a way to generate the station ranges for each sheet title block when generating sheets? It seems like there should be some sheet set manager variable for it or something but I haven't been able to find it.
I am working on a large park project. I have a proposed and existing surface. I have created a volume surface to show elevation banding with cut and fill ranges. I need to create a drawing for someone who doesn't have civil 3d showing all the "cut" areas. They really want a boundary of hatch. What is the best way to do this after I change my analysis to -30 feet cut to 0 feet cut.
1) new image, grayscale 2) fill (say 96,96,96) 3) image->mode->rgb color
The pixels will be (95,95,95) and (96,96,96) when they should *all* be the same.
It also happens when you paste a black & white image into an RGB document because even though it has three 8-bit channels (by definition not grayscale) Photoshop decides to make it grayscale.
I got Adobe CS3 Master Collection. Everything is fine, but there is one problem: In Photoshop grayscale images look brown or sepia. The screen itself is neutral, no color tints and I installed the driver. This problem only appears in Photoshop, Illustrator and not in other programs like Flash, Dreamweaver, Fireworks, Corel and ACDsee. In those programs grayscale pics look neutral. It has no effect when I disable the color management in Photoshop. RGB pics look great. When in desaturate RGB pics they look neutral grey but as soon as I convert them in grayscale, they become brown. In Photoshop's color managemet I can select a profil for RGB colors as you can see in the screenshot, but for grayscale I couldn't find a profil. Even in the internet I couldn't find one for my monitor.
If we convert a color image set at 300 dpi to grayscale and save as a jpeg, and place in Quark Xpress, the image acts as if the resolution is set at 72 dpi. (In color, it acts as if it's 300 dpi.) If we save it as a grayscale TIFF, it acts properly as if it's 300 dpi.
Is this a bug, a "feature!", or can we change a setting? Is this only true for use in Quark, or do other have this issue placing images in different programs?
I'm using photoshop cs5 on an imac and printing with an epson cx4200. I made black and white collages in grayscale and am printing them on fabric. The first few I printed look great but now they aren't true black and white. They have a blue or red tinge to them. I don't know if the settings were inadvertently changed but I don't know what to do.
I assume I should have photoshop manage colors rather than the printer but I don't know what options to choose to eliminate the red or blue tinge in the grayscale image.
I've seen this effect used in some adverts on TV, as well as some pictures online (I really cant remember where, but I'll try to describe it as well as possible).
Let's say, for arguments sake, that they are advertising for an orange... a big fat juicy orange .
So, you'd see this guy holding the orange. However, the photo is made in such a way that everything is actually in grayscale, except for the orange itself, which is bright orange.
I have an idea that perhaps you select everything except the orange and then convert just that to grayscale, but surely there must be a quicker way if there are many of those objects? Perhaps you'd select a color range?
I have absolutely no idea, those are just my guesses. Any ideas on how to they achieve that effect?
If you have an image that is in RGB or CMYK mode and you want it to be a sharp looking B&W, rather then simply going straight to greyscale, first convert it to Lab Colour. Then while in Lab, go to your Channels window and delete the last two channels. Your image will now be in B&W. Now you can convert it to greyscale.
Now I know all you skeptics who just tried it didnt see a lick of difference. The truth is, rarely are you going to see a dramatic change, rather it is very subtle, but the improved quality is there. The greys are a bit richer then before. It also depends on your image as well.
I need to convert an image to Grayscale in CS2, but I need to retain my RGB channels. I need them because a special bump map tool that I have, which also converts images to DDS format, requires them. And I need to make my bumpmaps with this tool because of the special format that dds files require for the game I am using these textures in.
I've been using the Photocopy filter, but I feel it leaves the image a bit "dirty." I'd like a clean Grayscale conversion.
I am looking for a Photshop Plugin or a series of steps that convert a grayscale image to a 3D image using the grayscale values from 00 00 00 to 255 255 255 as elevation where 00 00 00 is the lowest elevation. This technique is apparently called Shape Displacement Shading.
We create 4/1 postcards in Photoshop CS2 and then Print them on an IKON CCP650. The problem we're running into is that the IKON sees the grayscale back as color, so we are being charged double for each back printed.
We create the images new as grayscale; then save them as pdf with the color conversion option turned off. I don't know what - if anything - I'm missing that would make the IKON see the image as colored.
I need help with separating a grayscale image into dark and light channels. Specifically what I am trying to do is take a grayscale image and divide it into two (or more) channels representing the lower and upper percentages of black. I am doing this so that I can create a black and light gray spot color separation. In screen printing, the lower values of gray tend not to come out and get dropped when burning the film onto the screen. Additionally with dot gain being what it is in screen printing (30%+), it is advantagous to split the gray channel into two channels with only the upper half (50% or more black) into one channel, and the lower half (less then 50% black) into another channel. I have tried to eliminate both upper and lower halfs without altering the other half but can't figure it out. To explain another way, imagine completely elimimating 50% black or more from the histogram without altering the 49% and lower values or compressing them, and then again in reverse, keeping the 50%+ and completely eliminating the lower half.
I am faily new/inexperienced with photoshop. I have created a new file and am trying to place an image that is in color. When I place it, it turns grayscale.
I use some graphics software that accept the image in the form of grayscale as follow :the software then convert this grayscale to a 3d relief.is there a method to convert any image to such format with there details ?
I'm confused about gamma adjustment. I'm getting a book ready to be published by a print on demand company. It involves making a PDF using InDesign which contains photos which I've edited in Photoshop. The company has a list of specifications " to be sure that my PDF prints properly",and one of them says "The gamma of a grayscale image should be between 2.2 and 2.4." I don't know how to interpret this. If I change the gamma of a photo to 2.2 it obviously becomes much lighter, but then when it's saved the new lighter document has a gamma of 1.
I know I'm not understanding this at all. I've looked all over trying to figure this out. Most references refer to gamma adjustments for monitors, and I get that. I also know that when things are printed they will come out darker because of dot gain.
I have tried several options to get my grayscale pictures printed nicely.I have tried to change the gamma settings, lpi settings, image sizing. I have run out of options now.
