Pixel: What is it

Our opinion

Pexels the free photo of free rights

Pexels is a free HD -free free photo bank, which allows you to find photos for your website. Pretty professional images improve the design of its website. But above all to optimize its effectiveness by making it more attractive, drawing the attention of visitors and influencing their behavior.

Thanks to an impressive collection of free photos and videos, Pexels offers the possibility of finding and downloading visuals to illustrate your content. Among thousands of high -quality rights and videos and videos, you will certainly find the perfect image to make your website beautiful and seduce your visitors.

Choosing an image rather than another can have a significant impact on the performance of a website. Discover the presentation of the PEXELS right -free image bank, to find beautiful free images.

Our opinion

Discover Pexels

The free image bank has several hundred thousand photos of high resolution

Supplied by professional photographers, these rights free of rights are handpicked to ensure their quality.

PEXELS also has a free and free video bank bank. These HD videos can be downloaded in MP4 format.

It is possible to download all of these free photos and videos and use them for personal or commercial purposes. Under licenses Pexels or Creative Commons 0, you are free to copy, modify, distribute and use photos and videos.

The allocation is not required, which means that it is not compulsory to indicate the source of the photo or video, or its author.

With Pexels, it is very easy to find free high -quality rights photos, on various themes

This free photo bank offers hundreds of thousands of photo galleries, to find the ideal image to create a beautiful website. It is also possible to search for free images thanks to the search engine. The Pexels site is available in French, which allows you to search for free rights thanks to keywords in French.

To download a free photo or video, no registration is required. Just choose the right image format from those offered, or define personalized image dimensions.

Pixel: what is it ?

[In video] Deepstereo creates a video from simple photos a bit like the Hyperlapse, Deepstereo application, a new algorithm developed by Google, is capable of.

Pixel is a unit of measurement. Called PX, it means Picture Element. It allows you to measure the quality of a matrix digital image on computer or television for example. Pixel generally has a rectangular or square shape. It contains information regarding color shades, their number, but also transparency transparency or texture texture . The more an image contains pixels and colors, the higher its resolution and its high quality.

When an image is enlarged, we then see all the pixels which it is composed. The pixel occupies a place during its display, so the pixels of the black and white screens occupy a place of an byte byte only. Conversely, today, the highest definitions can have pixels up to 32 bits. The screens 16.8 million colors include 24 -bit pixels, but sometimes they take up more space to code and display transparency in particular. The more the pixel will have memory space, the more the image will have colors and will be clear.

What is the pixel for ?

The pixel defines resolution as well as the definition of an image. It allows the correct display of a digital image on screen. In coded form with a succession of 0 and 1, it will provide the information necessary to display the image in a certain dimension. In addition, it will also provide information on its quality as well as on the shades of colors and textures to display.

The resolution of an image corresponds to the number of pixels that the image contains in terms of length. It can be written DPI, PPP or even in points per centimeters. The definition, on the other hand, represents the number of pixels present in the image in height and in width. We find the use of pixels on computers or television screens, on tablets, but also in mobile devices or in digital cameras. Its use is therefore very important for the high-tech environment and new technologies.

How to pixize an image ?

There are several reasons why you can wish to pixize an image. You might notably want to preserve a person anonymity by pixeiling their photo or even wanting to create an artistic effect by this technique. To do this, different means are available to you. You can use an online tool like “I Love Img” or “Pixlr”, you will then have to download the image you want to pixeize.

You can also use image processing software like Gimp or Photoshop. If you use the latter, you can give style to your photos, deciding to pixize part of your photo for example. To do this, you will have to open the photo in the Photoshop software and unlock the background layer. You can use different techniques to create an aesthetic effect that you like.

Photos at 200 megapixels, it is possible at Hasselblad

To pixize your subject, you can click on select a subject and the software will then pixeize with great precision the desired place. If you want to provide details, you can apply a mask. If you have not installed Photoshop, you can still pixize your image with Microsoft Paint. To do this, go to Microsoft Paint, then open the image to be redefined. Then you can select all or part of the image. In the Images tab, click Rejection, according to your Microsoft version, you can have Résize/SKEW Instead of resize, but this corresponds to the same action.

The resize button corresponds to a dotted square. Once in the dialog box, you can decide to resize in percentage or pixels, it’s up to you to see what is best. Choose the horizontal and vertical values, then click OK. You can also check the box keep the proportions to keep a realistic effect.

Pixel – 2nd secondary

Exercises, theory and digital, it’s perfect! Cover all the concepts of second 2nd mathematics with the Pixel knowledge and activities notebooks. Progress linearly by mathematical field – arithmetic (25%), algebra (35%) geometry (25%), statistics (5%) and probability (10%) – by following the increase in learning defined by the MEES (Ministry of the ‘ Education and higher education).

ISBN13 9782761354417

*Note that this educational work is only aimed at teaching specialists.

Any order must be sent in writing to the customer service at [email protected] or by filling out our online form.

Description

Exercises, theory and digital, it’s perfect!

Cover all the concepts of second secondary mathematics with the notebooks of knowledge and activities Pixel. Progress linearly by mathematical field – arithmetic (25%), algebra (35%) geometry (25%), statistics (5%) and probability (10%) – by following the increase in learning defined by the MEES (Ministry of the ‘ Education and higher education).

Exercise book

The activity book Pixel Includes all activities.

• Each chapter is divided into sections devoted to a precise concept accompanied by two pages of exercises and a short problem page.
• Each chapter ends with a balance sheet including a situation of application of the notions learned.
• All activities include references to the knowledge notebook, for theory, or to the section Tools, Also reproduced in the knowledge notebook, which brings together files that the student can consult if necessary (ratings and mathematical symbols, tables and diagrams, figures and geometric constructions, geometry statements, etc.)).

Knowledge notebook

The knowledge notebook Pixel brings together all the theoretical concepts that will allow the student to do the exercises of the activity notebook. Additional to your teaching or your course notes, it will become the student’s reference tool at home.

• A block Definitions, Accompanied by explanatory examples or patterns, helps to understand the concepts and mathematical concepts addressed.
• Section How to do? Guide the student step by step in the application of strategies and procedures presented.
• Mathematical terms are in bold and easy to spot thanks to the index presented at the end of the notebook.
• References to the tools presented at the end of the knowledge and activities notebooks make it possible to maximize the use of these resources.

EXCLUSIVE! The notebooks of knowledge and activities are also offered with a 12 -month subscription to the digital version of the notebook – student, which gives access to more than 40 explanatory videos!

A student digital set that offers even more interactivity!

Included to the purchase of knowledge and activities notebooks, the digital ensemble includes:

• The digital notebook
• Access to an interactive exercise bank

Opt for a winning duo in mathematics!

A digital version enriched by more than 40 explanatory videos and exercises to do online

Benefit your students from practical multimedia content!