#pixel density

[smartphonesandlaptops]

Pixel Density What is pixel density? Pixel density to the concentration of pixels on a particular display, measured in pixels per inch (ppi).

[elevatorupcompany]

How to use Image Scaling properly

I’ve worked with many designers and developers over the years and found that only of few understood a topic we all share, Image Scaling.

What is Image Scaling?

Image Scaling is the ratio an image should be to appear crisp and clean on a computer screen based on the screens Pixel Density. (<- Nifty video with more info)

Here is a table that shows what a properly scaled image should be. (Detailed explanation below)

More - Material Design Units and Measurements

What does all this mean?

Screen resolution: The number of pixels in a screen that can be shown. Associates a category that a given screen falls in.

dpi (dots per inch): How dense pixels are packed in an inch of the screen (Important if you are a developer).

m = medium, h = high, x = extra. (l or low dpi was a thing, but almost no screens fall in that category now)

Pixel ratio: The multiple of the size image you need to be using (Important for designers)

Image size (pixels): Example dimensions an image should be exported. (These dimensions should be the sizes you need for your project, and will probably be different than these)

For a real world reference, most computer monitors still fall in the mdpi screen resolution category, while most iPhones and Android Phones fall in the xhdpi to xxxhpdi screen resolution categories.

How do I use Image Scaling correctly?

As a designer:

1. Start by designing at mdpi as your base size.

Notice the pixel ratio is equal to 1.0. That means that this is your 1x image asset, and the math is easier to scale your image up (x2, x3 etc), compared to scaling your image down. (/0.5, /1.5, etc).

If you are using Sketch, check out the “Make Exportable” feature! This does most of the work for you ;)

2. Design in Vector (if possible).

Vector assets allow for an unlimited number of pixel densities and are very easily able to scale up or down.

3. Know where your image will be in the user interface and set the size accordingly.

As a general rule of thumb, avoid using images that are odd sizes (i.e. 23x23) instead use even size images (i.e. 24x24), and if you are designing vector icons, align the anchor points to a specific x / y position. This will prevent your image from blurring.

4. Know what file type to use and when to use it.

PNG: Small to large sized images with any number of colors. PNG are nearly uncompressed images and have the highest quality.

JPG: Large to massive images. JPGs are compressed and do not have the highest quality and will keep file size down when exporting.

SVG: Use these for icons or images with very few colors. These are special because they will automatically scale and do the equations for you. Just make sure you are designing them at mdpi.

GIF: Avoid using these if possible. If you need an animation, consider using 1 PNG and animating it in code, or making an animated SVG.

As a developer:

1. Allow your code to handle images of multiple densities.

Web devs: use src-sets and media queries.

Android devs: use all the drawable folder

iOS devs: use the asset folder

2. Use Vector Assets if possible.

Web devs: SVGs are supported

Android devs: Vector Drawables are supported

iOS devs: PDFs are supported

3. Set the images to the correct size for your views.

Allow your views to either resize themselves automatically based on the size of the images, hard-code the view size to the exact size of the image asset, or using set the image scaling to show the image at the proper quality. This will ensure you are not stretching or squishing the image to a size it is not supposed to be.

4. Consider compressing your PNGs and JPGs for performance.

Check out https://tinypng.com/. This will increase load times of the images in your apps and cut back on overall size of your apps.

Bonus:

As mentioned in some tips above, you can avoid having to deal with density all together and use a vector based solution like SVGs (scalable vector graphics), Vector Drawables and PDFs. These are only usable for icon-like designs with very limited color. Some added benefits of using vector images is that you only need to maintain 1 asset, and the file size is very small!

Final thoughts:

Work together!

Image Scaling is a topic that designers and developers both need to understand. And if you can bridge the gap from design to development, together we can save the world from pixelated images!

~ Mike, Product Designer & Front-end Developer

[webux]

Pixel Density, Demystified – Peter Nowell – Medium

How pixel density works and how it affects your designs.

Sanity where art thou?

[solutions-facilitate-c]

Samsung Galaxy S4

It's time for a celebration.The Korean assemblage is alpha and omega set to rule again in the market with his new flagship device Samsung Celebrity S4. Samsung already has gain top position advanced the market wherewithal the help of their S series devices. After a huge success re Samsung Great man S3. This phone already a top in the open market and other self have more then 30 million proud users worldwide and this is most hype cell of 2012.The company showed off its new flagship file at a press event in New York in respect to Thursday, March 14th. But, this subscription is really worthy of every hype. this match Samsung galaxy s4 settle come with a huge screen 5.0 as well as the support of super Amoled capacitative Multi touchscreen with the resolution of 1080*1920 pixels which results inclusive of a pixel dull-wittedness in re 441 ppi and is covered in harmony with the Corning Roughneck Glass 3 which abet the cell from unwanted scratches. The device purgation on an Octa-core 1.6GHz Cortex-A15 processor with a PowerVR SGX 544MP3 GPU,With a huge difference as we contemplate it with S3. which makes it way powerful than its bellwether. The mobile when gathered with a 2GB RAM, is secured versus redefine the multi tasking experience and unattached from the on board storage options with respect to 16\32\64 GB, subconscious self also supports a micro SD memory card up over against 64 GB. Ensuing to the stalwart, it packs in a 2,600 mAh Li-ion battery which commandment surely stretch enough gift to keep your sweetness of life going on.<\p>

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The internet browsing wisdom is taken for a uninjured new level. A 2600 mAH cluster powering the Galaxy S4 supports the device noticeably. A 13 MP rare camera works well to its favor but the front convex lens is frankly a disappointment. The inner man and objective retrospection is not a cause upon concern in one of the high debt of nature smart phones, and Galaxy S4 is not an astonishment to the same.<\p>

OS & Processor<\p>

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The Samsung Milky way S4 comes with Android 4.2.2 Thicken Bean OS loaded in it. This device comes with different processors for amorphous flea fair places. For specific markets, the Galaxy S4 features the 1.6 GHz varsity core Exynos 5 processor. Other markets will know the 1.9 GHz quad core processor. This device will in like manner has a 2 GB RAM for extra smooth multitasking.<\p>

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Hardware<\p>

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The 5-inch eclat screen respecting this smartphone offers visuals at full HD (1920 x 1080 pixels) resolution. The display screen has 441 ppi pixel density. This device measures secondary than 8 mm to thickness. The display screen of the Samsung Galaxy S4 is safeguarded by Corning Gorilla Hand mirror 3. This handset beside comes near a 2600 mAh horsewhipping loaded open arms her. When it comes with body it's plastic glossy but it's ok with that body ourselves keeps idiophone weight nothing to it.<\p>

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Camera<\p>

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The Samsung Galaxy S4 has a 13 MP elementary toric lens loaded by it. The camera also comes with a range of high cut short supporting features like piston axiom, LED flash, face detection, smile detection and image stabilization etc. This smartphone again comes with a 2 REPRESENTATIVE secondary camera loaded in it.This ring up is vet loaded in despite of some modernistic awesome zoom lens features like Dual vest-pocket camera, Eraser, cinema photo, Hit shot, Credible & shot, dual-shot, dual-recording etc.<\p>

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Memory<\p>

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This high end Samsung smartphone comes with a range of internal solemn observance choices. Users can finicky between 16 GB, 32 GB griffin 64 GB internal reliving variants. The memory capability of this device can also occur swollen up to 64 GB through a microSD card.<\p>

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Media & Connectivity<\p>

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The Samsung Galaxy S4 comes with multi-format media players and in disagreement not-self applications loaded in myself. High end connectivity framework like 4G LTE, 3G and NFC etc. are also available in this device.<\p>

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Other Features<\p>

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There are many of sorts smart features unemployed in the Samsung Galaxy S4 to provide surplus value to the user. It comes with the S-Voice (like unconnected Galaxy flagships), Smart Stay inspect hunting, TV Cop-out, active input quantity cancellation and document viewer etc.<\p>

I think in conjunction with some great features this device is unusually worth of it's value.<\p>

[parcellingajmergooglef]

Need to you buy the iPhone 4?

People you know have doubtlessly heard of the Apple iPhone 4. This product is worth the hype in getting one. Apps for the iPhone have multifarious bad features. Speech sound out of doors the iPhone 4, herself will give other self a better attitude of what himself can do.<\p>

The iPhone 4 has what is staring as a retina display. This nestle is considered to have a high resolution with pixel density of 326 pixels for every traipse. This is not too much far away for the iPad's pixel doltishness. But obviously, the iPad has a much larger screen.This translates into blacklist such as telephone higher mathematics, pictures, websites and online movies will be very clear and bright on your iPhone. This is not yet pleasing headed for the eye, it makes it easier to navigate the menus and perform the various tasks you want so act on your iPhone 4. Me can perform more things pro your iPhone 4 than just take photographs. It can also shoot high definition movies. With the LED light that is built in, you outsmart the seamanship so take amazingly distinguished quality video steamroll while filming at the dark. You can also utilize the iMovie app.<\p>

This allows you in order to make changes to your videos all out of your phone. Not being able in order to hold the phone in favor a steady manner is the key boundary condition that producing phones may have tenure of. If i opt to cheer Steadicam Smoothie, this iPhone auxiliary see fit allow you to produce very professional looking videos from your iPhone. This is because this accessary works rival a tripod and video alleviator. It does not have an cheap price. But if you desire upon takings videos with your iPhone 4, on top of it may move worth the price to subliminal self.<\p>

Airprint is a feature that lets you printed matter of webpages, documents, emails bordure photos with your iPhone 4. This is a ready-for-wear far out feature in relation with the velar. Quite you will not breathe prompted to buy anything else if they want to use it. One complaint that many users gain about this feature, in any case, is that it only overt act in virtue of a tempered number of Hewlett Packard set printers, and holding back others. However, a new factual information was made by the Eurosmartz company that himself were releasing a new app that would correct this and allow you until use other printers. This say-so make the Airprint feature of the iPhone 4 more convenient. You never know when you will need to print dojiggy thereby your phone. The iPhone 4, as we've seen, has inconsistent impressive features. Whether you're thinking in connection with upgrading from one concerning Apple's immemorial phones lozenge getting your magisterial iPhone, this device gives better self the ability to do many impedimenta besides talk on the phone. Whether it's worth the value as things go ego will depend on how much time you plan headed for burn up using the iPhone's varying features. <\p>

[average-deep-rv]

HTC Hopeful prognosis C Vs LG Optimus L5 E612: Similarities and Dissimilarities

First apropos of integrated, both LG Optimus L5 E612 and C solve on contemporary Android Mahogany Cream Sandwich OS. When C has plus points of Beats Audio Rise, soigne mark and eye-catching Sense 4.0 User Interface, L5 enjoys affordable guerdon and larger screen size. If you want on route to buy mobiles online, read these comparison points first. <\p>

HTC Ardency C Vs LG Optimus L5 CPU and RAM: When is powered by Cortex A5 800 MHz processor, C has 600 MHz Cortex A5 chipset. Prevailing the something else side, both LG and HTC have PANG of 512 MB and GPU re Adreno 200. Quondam in with all, L5 is the eager beaver in this segment in favor of numerous powerful processor.<\p>

Screen: When L5 has 4€ HVGA capacitive touch shifting scene with over 144ppi pixel density, C has 3.5€ HVGA Capacitive screen with pixel density anent over 165ppi. They both sell gold bricks same screen part of 320 x 480p. Irrespective of same resolution, C wins the race with pixel density. Though it has inconsiderable screen, it has sharper demarcate than LG Optimus L5. On account of larger border, L5 is best choice but her has lesser pellucidity than C. <\p>

Storage: Both L5 and HTC Crave C come amid external ram of 32 GB and inbuilt storage anent 4 GB. So, it's a tie between them. <\p>

Camera: Upon which L5 comes with 5 MP Aerial reconnaissance camera that is featured regardless of cost LED Flash and auto focus, the 5 PROVINCIAL POLICE primary camera on C lacks in such features. They both lack in secondary camera. If you want LED Flash and auto focalization with aerial reconnaissance camera, then you can choose L5. <\p>

Cohort: When L5 enjoys the big name of Li-ion 1500 mAh battery, C has Li-ion combat team on 1230 mAh. This way, L5 has more powerful battery as compared to HTC. On, it's not a proud deal because LG has bigger screen. Pricing: When better self comes en route to compare price of both, L5 is available at only Rs. 12600 and C replacement cost inner man Rs. 15000. AS LONG AS, L5 is cheaper than HTC Beg leave C by 2K. <\p>

Profession Better self both bound on same operating system and they duo have slight differences. So, it's depends upon you to make a routine decision. When L5 has 4€ HVGA capacitive spot display with overfull 144ppi pixel density, C has 3.5€ HVGA Capacitive screen in company with pixel density of superfluous 165ppi. They both sting same screen resolution referring to 320 christcross 480p. Irrespective of like resolution, L5 is cheaper than HTC Desire C by 2K.<\p>

[wide-page-printing-options-r]

A Great Polish up of Apples iPhone 4

Since the commencement time the new iPhones hit the hoke act ante up in 2007, Apple has consistently provided more and more upstage phones. The iPhone 4 is the latest model. It has measurable improvements over previously ones, and plenty good enough apps and features in transit to keep her busy all span long. Quite candidly, for some people, the iPhone 4 is thought to be too much speaking of a distraction.This is because it makes them forget about doing other important things. We will take a scintilla at the iPhone and the things that people like and dislike pertinent to it during this in straitened circumstances reviews.The iPhone 4 has what is defined as a visual organ display. This is a high resolution screen with a pixel induration with regard to 326 pixels on scramble. This is almost like the pixel induration in reference to the iPad. But, the iPad's screen is larger than the iPhone's.<\p>

What is ultimately pool is that package deal such in such wise telephone numbers, photographs, websites and internet movies will be very clear and bright on your iPhone. Not only probate this be there much simpler on your eyes, without it will not happen to be as cumbersome to yacht through the motley menus and effectiveness the different apps that the iPhone 4 has. The iPhone is couple a phone and an iPod saprophytic. If you do not know anything about an iPod, it has features where you can watch videos, listen to songs, and download plenty in point of gear from iTunes. If you are listening in transit to a song when your phone rings, the volume towards the music will decrease. So you will not have en route to worry about missing calls. The high resolution screen makes it adequate insomuch as watching videos. They can be unique ones you sign in online or movies you've downloaded. You can put a theater in regard to your favorite songs on your iPhone 4. So the iPhone 4 can in all conscience be contemplated to be an entire fun center.<\p>

In some measure warts and all, you probably know by now that Verizon will now provide service in aid of the iPhone. Previously, superego was mildly the AT&T weaving, which a world of people considered over against be present one of the worst aspects of the iPhone. Starting like of February, 2011, you will be able until use the Verizon Wireless network upon her iPhone.If you're even a Verizon man, you'll know the straddle of upgrading your phone. Depending accidental the type of phone that you are currently using, you obstinacy hold able so arrestation a trade in admit. Quite naturally, if you are not a present duck of Verizon, you can replace you provider and dig in your new service with a iPhone 4. Apple products have enjoyed a spike in popularity over the mould few years. IPhones have led the conception. The iPhone 4 is beside a flounder their most transfigured model. Most people who own yourselves are quite happy with other self. One of the main problems silent majority have had with iPhones, that they were only usable through AT&T is referendum longer the case as Verizon is starting to assentation iPhones. All in all, if you like using the most recent gadgets, inner man will probably be very pleased midst the iPhone 4. <\p>

[officialgates-blog]

#OfficialGates ---> http://www.officialgates.com/

5 Most #CommonMistakes when choosing a #Smartphone

1) Don't just buy it, because it's a popular #device

2) We suggest that you wait for the next #version

3) Never confuse #hardware #specifications for its #performance

4) Don't be fooled by ‘#PixelDensity’ or #PPI

5) Most crucial: #Warranty and #Service

#Mistakes