I want to do outdoor advertising, 30 square meters, want to use a picture as the background, where is such a big picture?
Author:Cui Danlu Time:2021-10-01 09:50 Browse(484)
I suggest you use Photoshop to do it. Of course, you can choose AI or CDR. You don't have to worry about the size. More often, you should consider the resolution. Next, I'll introduce you to the basic knowledge of spray painting
I suggest you use Photoshop to do it. Of course, you can choose AI or CDR. You don't have to worry about the size. More often, you need to consider the resolution. Next, I'll introduce you to the basic knowledge of inkjet photography. Image resolution: Inkjet files are often very large. If you still use the resolution of printing for large pictures, the computer can't stand it, And it's not necessary.

I want to do outdoor advertising, 30 square meters, want to use a picture as the background, where is such a big picture?

for example, Photoshop can't draw more than 30000 pixels.
but there is no dead standard for the resolution of spray painting.
the following is the resolution used when making spray painting images of different sizes, for example (the image area is square meters, you can draw according to the following requirements): more than 400 square meters (resolution: 10.16dpi) 4pixel / cm; 200-400 square meters (resolution: 12.7dpi) 5pixel / cm; 120-200 square meters (resolution: 15.24 DPI) 6 pixel / cm; 80-100 square meters (resolution: 17.78 DPI) 7 pixel / cm; 60-80 square meters (resolution: 20.32 DPI) 8 pixel / cm; 30-60m2 (resolution: 22.86dpi) 9pixel / cm; 20-30 square meters (resolution: 30.48dpi) 12pixel / cm; Below 20 square meters (resolution: 38.1 DPI or above) 15 pixel / cm; Note: when the picture mosaic is affected, the file needs to be cut. When pixel / inch unit is used as an integer, there will be errors. When pixel / cm unit is used as an integer, it is very accurate, because we are perfectionists.
note: when pixel / inch unit is used as an integer, there will be errorsIn general, 72dpi is OK for photo resolution.
if the file is too large (such as in the Photoshop menu, image / image size display... It is recommended that you use Photoshop to do it. Of course, you can choose AI or CDR to do it. You don't have to worry about the size, but more often you need to consider the resolution, Next, I'd like to introduce you to the basic knowledge of inkjet photography. Image resolution: Inkjet files are often very large. If the big picture still uses the resolution of printing, the computer can't stand it at all, And it's not necessary.
for example, Photoshop can't draw more than 30000 pixels.
but there is no dead standard for the resolution of spray painting.
the following is the resolution used when making spray painting images of different sizes, for example (the image area is square meters, you can draw according to the following requirements): more than 400 square meters (resolution: 10.16dpi) 4pixel / cm; 200-400 square meters (resolution: 12.7dpi) 5pixel / cm; 120-200 square meters (resolution: 15.24 DPI) 6 pixel / cm; 80-100 square meters (resolution: 17.78 DPI) 7 pixel / cm; 60-80 square meters (resolution: 20.32 DPI) 8 pixel / cm; 30-60m2 (resolution: 22.86dpi) 9pixel / cm; 20-30 square meters (resolution: 30.48dpi) 12pixel / cm; Below 20 square meters (resolution: 38.1 DPI or above) 15 pixel / cm; Note: when picture splicing is affected,If you need to cut a file, there will be errors when you use pixel / inch as an integer, but it is very accurate when you use pixel / cm as an integer, because we are perfectionists.
generally, the resolution of a photo is 72 DPI.
if the file is too large (for example, in Photoshop menu, image / image size shows that the actual size of the file exceeds 400 megabytes), you can reduce the resolution appropriately, The file can be controlled within 400 megabytes.
storage format requirements: spray painting and photo images are best stored in. TIF format.
If LZW compression format is adopted, it is a good way.
it can not only reduce the space.
save the file transmission bandwidth, And there is no damage to the quality of the picture.
when CorelDRAW is exported, attention should be paid to: when CorelDRAW software exports the dot matrix diagram,
it should not exceed 10000 pixels, otherwise it will flatten the picture.
at this time, it is necessary to cut the picture.
cutting a piece should not exceed 10000 pixels, Only need to cut three pieces at most.
because it is more than 30000 pixels.
Photoshop has no way to process the file.
color mode requirements: spray painting uses cmky mode uniformly.
RGB mode is forbidden.
because all the modes supported by the current inkjet printer are CMYK mode.
when drawing in RGB mode and then changing to CMYK mode, the color will change, and the most obvious color is yellow, When RBG mode turns yellow to CMYK mode, yellow will have cyan inside,This way, yellow will turn green, and other colors will also change, because the imaging principle of ink and display screen is completely different, This determines that RGB mode can not be completely displayed in CMYK mode.
therefore, CMYK mode should be used as far as possible for inkjet and photo making.
therefore, CMYK standard should be followed when drawing.
cmky mode should also be used for photo making.
in addition, if there are special requirements for color (such as standard color, etc.).
we need to provide color proofs for us, and we will adjust the color of the picture, Close to the black part of the sample requirements: single color black is strictly prohibited in inkjet and photo (C=0, M=0, y=0, k=100), and four color black must be composed of C, m, y and K.
for example, the default black of Photoshop (C=75, M=68, y=67, k=90).
otherwise, the black part of the inkjet picture will appear crosswalk, and the single color black will be gray, which will affect the overall effect.
.
the black part of the inkjet painting picture will be gray
Related topics