Let's take a look at the curves tab consist rgb curve hue saturation curve
used to vary the highlights and the shadows of the image.
So image consist of the red green and blue channel so you can vary the highlights by dragging down
and pulling it to the left increase highlights
You can also make use of the Scopes here to get an idea of what is happening.
So you can vary the highlights and the shadows here
you can also put points here to do a traditional S curve
you can also choose the individual channels red green blue and vary it
next.
Let's look at this.
hue saturation curves to understand this.
hue vs sat means you're changing the saturation of a selected hue.
So let's for example
take the skin tones of the person
so let's take her skin tone for example.
So I put point there
So what is happening the this has selected a set of points which you can vary
skin tone color so you can move this point and you can see that her skin tone is like changing to constrain
this to a single line.
You can hit the shift button and it can move in a straight line so it will be constrained along that
line so you have varied saturation of the selected portion
so the next thing is the hue vs hue you can you reset this by double clicking anywhere and it reset
hue vs hue where you're changing the hue of this selected hue
lipstick color of this girl here.
Let's select that lipstick color and so that you can see that it is selected three points
what's happening is that it has selected some of the color here so to like narrow it down
this point here can narrow the points and more so that portion is really Selected the lipstick
color is selcted
You can see that the hue changing and you can make it to a variety of color you can narrow the points
so that only that portion is only selected
you have make accurate point selection to get rid of this
other thing that if you want again there at the points here anywhere you find it easy to make your
selections
we can also look at this image so here
changing the hue of this blue color well this sky here so you can see that a blue point selected
vary that color and see changing of that color certain blue color.
The next one is
hue vs Luma
to do that let's take this image so that you know you're changing the Luma value.
selected hue
luma means the brightness of any image so you can sselect the sun's color
and you can bring down the value of that you're reducing the brightness of hue lets look
earlier image
of the sky.
So let's select that first one select a point in the sky
vary that you are desaturating changing the brightness value of
that selected hue.
You're making it like black and white.
So you're reducing the brightness of that.
You can see that images like breaking down because it's in HD format.
So you need a higher quality to make drastic changes even turn it on until
this is the Luma vs sat
so you are changing saturation of selected luma
That is brightness.
So you select the sun here
and what we do is we we can increase the saturation of that luma luma as I mentioned
earlier is the brightness of the image that you can bring down this you can increase that brightness
of that sun here or you can turn it on
sat vs sat like similar to this
you select a particular color
varying saturation whatever color is there it's affected everywhere so different
within this is only the brightness is changing before brightness value here this saturation value is
changing it's increasing as we pull it down its decreasing pull it up it's increasing
so this is the overview of the curve tab so rgb curve hu sat curve