Gimp - 2.4 Guía Del Usuario
GNU Image Manipulation Program
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Figure 3.27: Problem Solved by Cropping
There will be problems whenever mixing scanned photos with digital photos and also with scanned negatives. Modern film
developing machines automatically crop one half of an inch off from each image -- the rumor is that the photo printing machines
match a certain style of camera view. If you are preparing an image to be printed on a machine like this; or if you are planning
on a gallery where the images are from different sources, some intelligent cropping to fit the best size for the medium you have
chosen will be a plus. If this is confusing; please blame the photo printing industry and not The GIMP.
developing machines automatically crop one half of an inch off from each image -- the rumor is that the photo printing machines
match a certain style of camera view. If you are preparing an image to be printed on a machine like this; or if you are planning
on a gallery where the images are from different sources, some intelligent cropping to fit the best size for the medium you have
chosen will be a plus. If this is confusing; please blame the photo printing industry and not The GIMP.
You can change the Resolution of your image as well, using the same methods as we used in the Scale, although, in my somewhat
limited use, the issue is more about how many pixels. Let’s say you want to get this image printed at the photo lab. 300 pixels for
every inch is preferred. This original image will print easily as a 7 x 5 photo. 2241px/300ppi = 7.47 in. Get out your calculator
for the short side. 1548/300 = _.
limited use, the issue is more about how many pixels. Let’s say you want to get this image printed at the photo lab. 300 pixels for
every inch is preferred. This original image will print easily as a 7 x 5 photo. 2241px/300ppi = 7.47 in. Get out your calculator
for the short side. 1548/300 = _.
There is another brutal fact you should come to terms with if you are new to graphics and computers. Just because it looks good
on the screen doesn’t mean that it will print that nicely. I tried to emulate how this image would appear printed at 300dpi. Sorry.
There are some options, for instance my friend printed images and then scanned them back in. Terrible business!
on the screen doesn’t mean that it will print that nicely. I tried to emulate how this image would appear printed at 300dpi. Sorry.
There are some options, for instance my friend printed images and then scanned them back in. Terrible business!
3.4.6
Change the Mode
As with anything else, images come in different kinds and serve different purposes. Sometimes, a small size is important (for
web sites) and at other times, retaining a high colour depth in all its glory (a family portrait) is what you want. GIMP can handle
all of this, and more, primarily by converting between three fundamental modes, as seen in this menu. In order to switch your
image to one of these modes, you open it and follow that menu and click the mode you want.
web sites) and at other times, retaining a high colour depth in all its glory (a family portrait) is what you want. GIMP can handle
all of this, and more, primarily by converting between three fundamental modes, as seen in this menu. In order to switch your
image to one of these modes, you open it and follow that menu and click the mode you want.
RGB
- This is the default mode, used for high quality rich colour images. This is also the mode to do most of your image work
with including scaling, cropping and even flipping as it gives the computer more information to work with. This extra information
also makes RGB Mode the largest to store as a result.
also makes RGB Mode the largest to store as a result.
A little bit of detail if you are interested. Each pixel or point when in this mode consists of three different components. R->Red,
G->Green, B->Blue. Each of these in turn can have an intensity value of 0-255. So, at every pixel, what you see is an additive
combination of these three components. All these combinations result in a way to represent millions of colours.
G->Green, B->Blue. Each of these in turn can have an intensity value of 0-255. So, at every pixel, what you see is an additive
combination of these three components. All these combinations result in a way to represent millions of colours.
As an example to practice with images have been provided in various sizes and formats. Indexed images of different sizes: from
a very old APOD a small gif and a larger gif of the same image from a later APOD. Also the same image in RGB as provided by
Earth Observatory a smaller version and a huge version.
a very old APOD a small gif and a larger gif of the same image from a later APOD. Also the same image in RGB as provided by
Earth Observatory a smaller version and a huge version.