Difference between revisions of "GIMP/C2/Colours-And-Dialogs/English-timed"

| Here is the foreground and background colour dialog and you can select the colours in 6 different ways.   

| In this 1st way, you can see some sliders as H,S,V,R,G,B and they stand for hue, saturation,value,red, green,blue respectively.  

|Here I select black as my foreground colour and you can see that the value of Hue,Saturation,Value,red,green,blue all are zero. And when I increase the value of Hue nothing changes.  

|I can increase the saturation while value is zero and nothing changes. But you can see here that when I increase the saturation, the colour in the other sliders change a bit. if I pull the Hue nothing happens , but when I pull saturation, colour of value changes to a kind of blue.  

| Here you can see the colours in the red,green and blue sliders changes according to HSV sliders and it becomes easy to select a colour. It you want a light colour then adjust the saturation slider and if you want a good mixture of strong colour then slide the value slider accordingly and select an amount in red, green or blue slider. So Hue, Saturation and Value is not very easy to understand but a good way to select colours.  

|I use this dialog only when I have to set a specific colour. For example if I want to have exactly medium gray then I pull the Value slider upto 50, so the value is divided between 0% & 100% and in the RGB slider I set the numbers to 127  and you get exactly medium gray.  

| Now let's have a look at the other dialogs. This dialog is based on the HSV colour model and 1st you select the colour in the circle which you want to have.  

|So when a Hue is selected, you get here the different Values of value and Saturation in the triangle for the same Hue.  

|The next dialog is similar tothis one here. In this dialog you have a strip to select the Hue, and you get the same colours as in the triangle in this square and now you can select your colour here from this area, or you can change the hue here and select your new colour.   

|Here you can also switch to saturation. And select the combination of Value by sliding this way and Hue sliding this way. You can set the value to get a strong colour here and change the saturation and the Hue accordingly.  

|In the same manner it works for red,green & blue. I can change the amount of blue in the colours I want to have and then the amount of red and green in the same way.  

|This dialog is not so innovative than the previous one. The next dialog is a water colour mixup.  

| Here this slider adjust the intensity of tipping into the colour pots. And you can select a colour from this box.  

|And this here will be the resulting colour. You can select a colour lets say this yellow and now I can add a bit of blue to this and a bit of red and the resulting colour you get is very muddy.  

|This dialog shows the active palet,and you can set the palet somewhere else. It’s only ueful for graphic designing and  for web designing.I really never have done much with this dialog. One more thing is still to cover its the printer colours  here.  

|I think this dialog is useful only for professional printers and printers use Cyan, Meganta and Yellow instead of red,green and blue and that is because they subtract the colours. The red, green and blue mixes up and adds to white and with printing If I set Cyan, Meganta and Yellow to zero, simply the white paper is printed.  

|This colours, these dyes subtracts from light, and reflects only cyan. And by mixing up them, you can subtract more and more from the light and you can get all the colours you can print. There are some visible colours that cannot be printed and so your result varies.  

|The fourth slider is k which represents black. To avoid mismatch with blue it is set as K for Black.  

|Let's repeat that. Slide  the Y slider to 40, M to 80 and C to 20. Now when I select the colour you get M slider as 75, Y as 26 and K as 20.  

|So now we have covered all the six dialogs of colour selection. But these two colour swaps are remaining. The front colour is my foreground colour and the other one is my background colour and when I click on it, you can set the colour here.  

|Just go to File, Preferences and then tool box and here you can see foreground background colour and even the brush and the active image. I'll switch this off afterwards because it takes too much space in my tool box.  

|This small icon on right top corner of colour swaps is for exchanging the foreground and background colour. The same can be done by pressing the  'X' key.   

|14.32

| And when I change the colour you can see how the code changes and i can also type in the Hex code and get the colour or you can even type the colour name. For example I type 'L' and you get all the colours lawn green, this is lawn green. So this was colour dialog in detail. I think i talked way too much.