Enlarging the picture by cell. World of DIY - homemade pantograph How to enlarge a drawing using a lamp

04/12/16 59K

You don't know how to increase the size of a picture? This is very simple task, since everything you need is already installed on your computer. Read this tutorial and you'll learn how to resize a photo using 5 simple tools.

Method 1: How to Resize an Image in Microsoft Paint

  1. Find and launch MS Paint. It comes pre-installed on all versions of the operating system Windows. Start> All Programs> Accessories> Paint:
  1. Drag the image into the Paint window or use Menu > Open (Ctrl + O).
  2. In the main menu of the program, find the item “ Resize" and select it:
  1. The panel for changing image sizes and proportions will open. You can specify the value in pixels. Don't forget to check the " Maintain proportions" Otherwise the image will be deformed:
  1. To increase the size of the picture, click the "OK" button and save the photo.

Adviсe:

  • If you can't ask required sizes photo without stretching it, you can use the Crop tool to remove unwanted edges. How to do this is described in paragraph 3;
  • To open a photo faster, right-click on it and select “ Open with Paint»;
  • It is best to save the image in the same format as the original.

Method 2. How to resize an image in MS Photo Gallery

  1. If Microsoft Photo Gallery is not installed on your computer ( Start > Photo Gallery), you need to download and install it as part of Windows Essentials 2012;
  2. Launch MS Photo Gallery and find your graphic file;
  3. Right-click on it and select “Resize...”:
  1. Select a ready-made preset: " Small 640 pixels", "Medium 1024", "Large 1280", etc.
  1. Click " Resize and save" After you increase the size of the picture, the image will be placed in the same folder, and the original will also remain in it.

Adviсe:

  • If you need to set the exact size of the image, select " Custom" and set the size to the larger side of the photo;
  • To resize multiple photos at once, select them while holding down the Ctrl key.

Method 3: How to Resize an Image in Photoscape

You can increase the size of the picture in Photoshop. Or use Photoscape for this.

  1. Download Photoscape and install it. Launch the program;
  2. Go to the "Editor" tab and find the photo you want to edit:
  1. At the bottom of the image there is a button " Resize", Click on it.
  2. Set a new photo size. Make sure the option " Maintain aspect ratio" is enabled and press the "OK" button:
  1. Save the edited image.

Adviсe:

  • If you need to resize multiple images, use the " Batch editor" Add a folder and resize all the photos in it;
  • If you don't know the exact size, you can set the "Percentage" of the original size.

Method 4. How to resize an image in IrfanView

  1. Install IrfanView - a great tool for viewing and enlarging pictures;
  2. Add a photo by dragging it into the program window, or by clicking the first button in the toolbar:
  1. Go to the "Image" tab, select " Change size/proportions» ( Ctrl+R);
  2. Set the new size in pixels, centimeters, inches, or as a percentage of the original image:
  1. Save the image.

Adviсe:

  • You can use standard sizes: 640 by 480 pixels, 800 by 600 pixels, 1024 by 768 pixels, etc.;
  • To save high quality photos, make sure the DPI is set to at least 300.

Method 5. How to resize an image online

  1. To resize a picture online, go to PicResize.
  2. Click the button Browse" to select a photo. Click " Continue»:
  1. Select a percentage of the original image, such as 50% smaller. The tool will display the output image size. Alternatively, you can enter your exact size by selecting " Custom Size»:

Let's imagine what it has become for you topical issue how resize picture without photoshop? At the same time, you are on the Internet, and you need to crop a photo or picture for the questionnaire. You will do the right thing if you sit at your computer, or with a tablet, or with a smartphone in your hands, and go to the site.

After all, on this resource you can use an application for cropping photos online. Please note that the application supports gif, bmp, jpg, png formats. It is located in the “Working with Images” block called “Cropping Images”.

And, performing simple operations here, we resizing the image. After all, like everything else within the service, this application very easy to use. It provides an opportunity to get quality result very fast.

With his help we resize photo. We trim it. And to do this, you just need to upload the desired image, select the fragment you need to trim and press the “Cut” button, having previously received information about the size of the future image. That is, the process involves a percentage increase or decrease in the image. There is always the opportunity to see how you cropped the photo and then save it.

What other features does the application provide?

When we resize a photo online, this does not mean that the whole process, which takes a matter of seconds, boils down to simply cropping the image online.

Anyone working with the image can still spend additional (but literally just a matter of) seconds to rotate the photo or flip it if necessary. But this is not all there is to it. You can also add beautiful effects or a frame. And all it takes is a few clicks.

It is not surprising that the site’s users are people from the most different professions, age and even hobbies. This is because some people prefer not to search for the application they need on various Internet resources. And this online service is good for many because it concentrates a wide variety of but frequently used applications.

And many of those who spend a lot of time on the World Wide Web (including in order to change photo), end up on the site quite naturally. Whether he is a designer or a webmaster, a journalist or a motorist. After all, many links on the Internet lead here, and the service is available to everyone without registration.

The service is also free. It can be used when preparing photos and music for blogs and websites. In addition, there is no need to download files, install and subsequently update programs.

This is appreciated both by those who are engaged in professional photography and by those for whom spending time with a camera is simply a great hobby. After all, the site has a suitable application for them. For example, for someone who is tormented by the question, how to resize an image?

Why is such a function needed?

The reason why one or another Internet user is forced to look for an online photo editor to use may be different. But, as experience shows, this is usually caused precisely by the need to quickly resize photo.

And this is usually the case. Let's say someone needs to upload an editable image to a website. For example, as a VKontakte avatar. As a rule, on most resources in global network For images uploaded to the service, there is a restriction on its dimensions. And this in this particular case means that you need to resize the photo online.

There is no way to do without this. However, the limitation is not only for dimensions. The limitation also applies to the weight of the image. That is, the problem requires such a solution when you need to reduce the photo. And this is very easy to do using an online photo editor.

But the “enlarge photo” function is used when it is necessary to increase the size of the image. Just like photo reduction, this function is used when someone processes an image very often.

For a more detailed description of the popular service, we should also mention such a “trick” as photographs in Instagram style. That is, in this case, the service provides the opportunity not only resize, but also to give the desired look to the photographs. Moreover, we are talking about those cases when you do not have mobile device and Instagram account.

We assure you that processing photos on a personal computer is much more convenient and enjoyable. The “Instagram style photo” feature works exactly the same as online photo cropping. This means the following: you need to upload a photo, apply effects and then save it to your computer. So, in particular, you can make the effect old photograph from a regular photo.

The stencil painter has to work not only using ready-made stencils, but also draw up stencil designs himself, selecting them from albums, books and handicraft samples that are available in every local history museum. Often selected drawings have to be enlarged or reduced. Every painter should know how to do this.

The drawing is transferred from the original to stencil paper or cardboard using carbon paper or, better yet, using tracing paper. This method preserves the book and makes it possible to clean up the translated drawing, which is difficult to do when using carbon paper.

It is good to copy ornaments using a lamp and glass placed on two supports. The lamp is placed below, under the glass, the design is placed on the glass, and paper is placed on top of it, onto which the lines of the ornament are drawn with a pencil.

Most small drawing can be increased to any size by cells. They do it as follows. The drawing is easily lined with a pencil into identical cells so that it forms a kind of grid. Then, on a sheet of paper the same size as the enlarged drawing, cells are also marked and lined, in the same number as in the drawing, but on a larger scale. For convenience, the cells are numbered. A copy of the drawing lines is transferred to large cells.

We must remember that the smaller the cells in the figure were marked, the more correct the magnification will be.

Enlargement and reduction of drawings can be done using a camera and a special device - a pantograph.

An installation for magnification is made from the Photocor apparatus or its lens, as shown in the figure. The pattern of the ornament is placed on the floor and covered with glass on top. A magnifying unit made of tin is placed on the glass, with the lens facing up.

Electric lamps L-1 and L-2 located in the installation are turned on, and the light projection of the ornament pattern is directed onto a large mirror glass located above the lens. Having received a sharp image, an ornament is drawn on tracing paper, i.e. the resulting image is transferred to paper placed on glass. The magnification depends on the distance at which the mirror glass is located from the lens of the device.

Taking advantage magic lantern, or an epidiascope, you can also enlarge the picture. The image of the drawing is transferred to the plane of paper or to the wall. With this method of enlargement, the frame painter must have drawing skills.

With a pantograph, enlarging and reducing patterns is done easily, quickly, purely mechanically and quite accurately. This device is of ancient origin, but for some reason it is very little widespread and is not commercially available. You can make a pantograph yourself.

To do this, you need to have four wooden rulers of the same length, width and thickness and evenly planed, preferably narrow and thin. At the same distance from the ends of each ruler, holes are drilled or punched with a hot nail to fasten the rulers together. On three rulers, holes are made at certain distances.

To enlarge the picture in For the length of the ruler, holes are made from the end (in cm 1)
100 80 60 40 30
1.5 times 33,33 26,66 20,00 13,33 10,00
2 times 50,00 40,00 30,00 20,00 15,00
3 times 66,66 53,22 40,00 26,67 20,00
4 times 75,00 60,00 45,00 30,00 22,50
5 times 80,00 64,00 48,00 32,00 24,00
6 times 83,34 66,67 50,60 33,33 25,00
7 times 85,32 68,57 51,43 34,28 25,71
8 times 87,63 70,00 52,50 35,00 26,20
9 times 88,89 71,23 53,34 35,61 26,67
10 times 90,00 72,00 54,00 36,00 27,00

Let's say that we need to enlarge the picture by 2 times. We will assemble the pantograph as shown in the figure, i.e. we will strengthen the sockets G and O in the holes marked 2. Having secured the pattern under socket A with buttons, we will place a sheet of clean paper under socket K.

If right hand hold needle A and trace the contours of the design with it one by one, then pencil K, installed in the socket, will draw on paper exactly the same design, but twice as large. If the original is very large and does not fit into the device, then it is drawn out in parts, which are then glued together.

If it is necessary to reduce the drawing, then the pencil is moved into slot A, and the needle into slot K, and the original of the drawing to be reduced is placed under it.

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or sketching is a constant task that arises when working with images.

Enlarge picture sketch batik or drawing sample is possible in a simple way, which artists have used since ancient times - magnification by cells.

You will need:

  1. A sketch or finished image that you want to enlarge.
  2. Tracing paper.
  3. A soft, well-sharpened pencil.
  4. Thin black felt-tip pen.
  5. Buttons or tape
  6. Large line.
  7. Square.
  8. A sheet of paper the size of the future composition.

1. Copy the image using tracing paper and a pencil, outline the outlines with a thin black felt-tip pen.

Now let's start drawing the mesh.

2. Draw a diagonal from the lower left corner of the outline drawing on tracing paper in the upper right corner.

3. Take a sheet of paper slightly larger than the size of your future work.

Place the tracing paper with a copy in the lower left corner, secure it with tape or buttons.

4. Continue the diagonal with a ruler to the section with the top edge of a sheet of paper.

5. Remove the tracing paper and draw the missing piece of the diagonal.

Measure the desired height of the picture along the left edge.

6. Using a square, draw a horizontal line at the top edge of our future picture until it intersects with the diagonal.

7. From the intersection point, again, using we'll build a square vertical line down, until it intersects with the bottom edge of the future image.

Now we have our sketch and a rectangle in which we will enter the enlarged drawing. These rectangles are proportional, that is, they have an equal aspect ratio.

8. Now apply a grid to the sketch, dividing the horizontal and vertical edge on even number equal segments.

(Divide the line in half, then in half again, etc.)

The higher the magnification, the finer the mesh should be in the original image.

9. Count the cells along the vertical and horizontal edges of the sample and divide the future drawing into a grid with the same number of cells.

ATTENTION! The number of cells on the source and on the copy must be the same!

10. When the grid is ready, carefully transfer the intersection points to the large grid drawing and meshes on the sketch.

By connecting them, you will get an enlarged image of your sample or sketch.

The same method can be used to reduce the size of an image.

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