GIMP :: Colour Density Correlated To Numeric Values
Apr 17, 2013
I have a map of a city which is segmented into different areas (based on post code boundaries). i have 5 sets of data for each area and was wondering how to display this data. one way is to present an image for each set of data. lets say the data is numbers of people. is there a way how I can relate the density of a co lour to the actual numeric value? e.g . very light yellow for 10 people, darker for 90 people and dark yellow for 350 people ( i would prefer a more defined range!!). Also, how might I use speckled colors?
I notice with GIMP 2.8 that I can't type in numeric values if I want to scale/rotate/etc. a selection. I can use the mouse to manipulate my selection freely, but I'm pretty out of luck if I want an exact value (though I know that I can hold Ctrl for certain snapping, which is extremely useful).
I have numeric values [St_NUMB] I'm adding as labels. I see that Map is converting them to strings [TOSTRING"(ST_NUMB)"]. The ST_Numb refers to a street number for a a house, and any outbuildings are labels as '0' (zero) since they are not technically an addressable structure. I have a large amount of data with a value of '0' (zero) that I would like to filter out of the labels. I'm really not sure what expression or command is the simplest to use.
Is there a way to set the colour of a part using the RGB value? (or perhaps the hexdecimal value?)I know I can set colours in iLogic by specifying an existing colour (ex... iProperties.PartColor = "Green")
I want to avoid adding the colour to Inventor as a custom colour, then referencing it in iLogic... The goal is, if a user specifies the finish on this part to be this colour, it will always be that RGB value (our standard in-house paint colour). I don't want to add it to the Inventor 'colors' design data... when we upgrade to the next version of Inventor, it's one more item we have to remember to carry over!.
I am working on a website that has existing template images. One of these in particular has a predominate blue background colour, specifically #0a2a35 (195 81 21 [HSV], 10 42 53 [RGB], 81 21 0 79 [CMYK]). I want to transform this colour to an orange colour, #be5d27 (21 79 75 [HSV], 190 93 39 [RGB], 0 51 79 25 [CMYK]). At the same time, I want to change the lighter and darker blue accent colours of the image to become variations of the orange colour.
I have tried several things already, and one method that almost worked for me was using the "Colorize" tool to match the HSV values of the blue colour to orange colour. It almost works except the RGB values don't quite match up.
I am trying to to use Colour to Alpha by picking a specific colour from an image. But I can't get the colour picker to work.
The image has an alpha channel.
I choose Colour to Alpha, then click on the From swatch. The Colour to Alpha Colour Picker window appears. I click on the eyedropper. But when I move the eyedropper over the image, the cursor changes to the previous tool that was used. For example, if I used the zoom tool, the eyedropper changes to zoom as the cursor leaves the Colour to Alpha Colour Picker window, and zoom becomes active.
I need to look at the pixel intensity of a gray scale image to write some code. I have used some trivial softwares like paintshop pro earlier where you can see the pixel intensity being displayed along with the co ordinates of the pixels as you slide your mouse pointer across. In Gimp 2.8 for windows, i can see the co ordinates but not the intensity. My image is a grayscale image.
I am fairly new to Gimp, but love it. I am a marine biologist and I would like to use this program for my research. I do need to export the histogram values as I need to do some calculations (pixel count and value). Is there any way I can do this?
Im sick of writing the value of brushes i want to use like example: brush size 10 or brush size 20 or brush size 5 or less..
Whenever i touch to adjust brush size by mouse it always is like this: brush size 334 or brush size 554.. Why it is so easy to pick 400size brush and almost imposible to pick 40 size brush?
Brush are? its like 500px wide.. since when small brushes are obsolete?? i never use bigger brush than 50! and most of the time i use brushes that are less than 10(value)
So its pretty important for me(i hope not only for me) to easily pick small brush sizes..
I have a plain rectangle with overall c09300c0 RGBA levels.I want to change the alpha channel value from c0 (193) to some other value, for the whole image at once. Or some other color channel.
How can I change the absolute value of a channel ? The color menu has only relative adjustments.
Using the native GIMP rotate function to rotate a rectangular image about its center (for instance) the corners of the image which are exposed by the rotation are set to RGB 0x000000 with an alpha value of 0.so that these areas are transparent.
If the same operation is performed as a GEGL operation the corners have RGB values of 0x000000 but alpha values of 255 - i.e. they are solid black.
Is there a setting to cause GEGL to use alpha values of 0 for these pixels? This also applies to GEGL operations such as shear.
What I'm trying to do is create images (PNG) that are populated with text values and images from a database. Something I could best describe as being like a mail merge. Can I write a Gimp script to do this? Let me give you some examples that demonstrate of what I want to do:
1 - Create randomly generated Lolcat images where I pull random cat images from a database and random funny text imposed in a layer on top of the cat image
2 - Create address labels where I pull names and address from a database and impose them on top of an image of the state I'm shipping it to.
3 - Create iconography for an e-commerce website that pulls from the product catalog to display the image with text of the category, product name, and size on top if it.
I have an attribute blocks and this att block has two tag values , is there a simple code for to change 1st tag values automaticly according to 2nd values ?
for example :
1st tag (50x50) - 2nd tag ( 100 ) ==> 50x50-100
if i enter 201 valuse to 2nd tag then 1 st tag has to change as 100x100
if i enter 501 valuse to 2nd tag then 1 st tag has to change as 150x510
I'm trying to bind the number keys to specific values for opacity/transparency of brushes, so I embarked for the shortcut key editor where I found that the "set transparency" does exactly the same as "completely transparent".
Is there a way to define what value "set transparency" sets it to? what I'm trying to do even possible with GIMP?
I opened a transparent PNG and exported the PNG to another file and unchecked 'save color values from transparent pixels' but about 20% of the color values in transparent pixels STILL remain in the picture when viewed in other programs that show those pixels!!! Gimp is NOT removing ALL color values in transparent pixels!
I'm trying to show, using the eyedropper tool, the actual values of pixels in an 8-bit grayscale image (Mode command confirms that's what's there). In the Info panel, the eyedropper tool displays percentages for every type of color information (K, CMYK), while the "8-bit" field remains blank.
Is there a way to have no layer value set for the description keys. I set all the layers, and now I realize I'd rather set this to no layers (boxes are all unchecked). I'd rather see no value under the layer column, but there doesn't seem like a way to set this.
My printer company is insisting that I convert my image to a CMYK profile.
After a bit of googeling it seems that a good generic CMYK profile might be ISOcoated_v2_300_eci.icc
And I found a utility to to do the conversion (URL]. However this utility wants to know what the source colour profile is. So, what does the GIMP use? I.e. if I create a new .XCF and paste in some images and do a bit of painting etc, and then save it as a .JPG, what profile will it be in?
Is the answer none? But I still need something for this utility. Or is it sRGB? There seems to be several variations.
I have scanned in some red coloured Chinese characters. They were on white paper. Now I want to make the 'white' disappear, because it ist not quite white, and when I print I get a shadowy block around the characters. If I save a .png, can I tell it to make white invisible, transparent?
how change brushes to paint in colour. I have downloaded quite a number and the screen shots before you download them show them in colour but when you go to use them they are all grey scale.
I finally managed to create some text along a curved path. That took a while. Now how do I A) fill it with some colour (it looks like it's just outlined text right now), and B) make it actually part of the image (exporting the image to jpeg, it doesn't seem to show up )
I have an image which I want to display using only a limited set of specific colours which I have defined in a colour palette. I am aware of the colour map plugin, but from what I can gather from the documentation it simply uses each pixels luminosity as an index. I want to to map each pixel to the colour in my palette that most closely represents the original colour. How do I do this?
I am trying to use a picture to colour some text. The problem is that the text comes in the form of an image. So basically take the outline of the text and fill it with the picture. I am so confused with layers.
Can AUTOCAD sum values that are entered as text values? Attached is a table text whose right final values should be all sumed up? Is this possible inside AUTOCAD?
What my problem is; i want to express an if function like if P1 is out of my EG and Distance to Surface is error value OR P1 is inside the EG and Distance to Surface is a numeric value.There is the attachment to explain it.
I can't find a way to import an .icc into my GIMP work.
I want to do this so that the pictures on my computer monitor match as closely as possible to the prints from my local (high-end) print shop. My screen is Spyder calibrated.
I'm trying;
Image >>> Mode >>> Convert To Colour Profile >>> (and then from the pop-up box) >>> Convert to ... (and then from the pop-up box) >>> Select Colour Profile From Disk
... and then I select the new .icc (provided to customers on the print shop's website) from a Downloads folder on my local drive.
That all sounds right doesn't it?
It stubbornly remains on sRGB.icc
I've also tried the process in;
Edit >>> Preferences >>> Colour Management
Same result - ignores the selection of a new .icc and remains stuck on sRGB.icc.
I'm desperately trying to colour correct for printing today.
