The Blinkimg blog
Guides, format comparisons and engineering notes, every figure measured on the same engine you use.
Recent articles
- EngineeringWebP, Quality, JPEGWebP quality: which setting to use, measured from 40 to 100Use WebP quality 75 for photos and 75 to 80 for screenshots, and lossless for text, logos and flat art. To match a JPEG saved at 80, use 85. We saved 6 images at every quality from 40 to 100 to find where extra bytes stop buying detail.Sahadat Husain
- FormatsWebP, PNG, TransparencyWebP vs PNG: which is better? We measured 5 imagesWebP is better than PNG for images on a website. Lossless WebP kept every pixel of our 5 test images in 27% to 88% fewer bytes. PNG is better for files you edit, email or print, and for 16-bit images.Sahadat Husain
- GuidesImage URL, Copy image address, ChromeHow to copy an image URL in any browser or phoneTo copy an image URL, right-click the picture and choose Copy image address, or Copy Image Link in Firefox. On a phone, open the image in a new tab and copy the address bar. Then check which file you got: the same picture gave us three.Sahadat Husain
- EngineeringCSS, Opacity, Background imageCSS background image opacity without fading the textOpacity on a box fades its text with the photo. We rendered 9 ways to fade only the background image and measured how readable the text stays.Sahadat Husain
- EngineeringCSS, HTML, FloatHow to stop text wrapping around an image (and wrap it on purpose)A floated image pulls every line after it up to its side, the next heading included. Here is each fix, measured at 3 screen widths.Sahadat Husain
- EngineeringHTML, Links, Alt textHow to hyperlink an image in HTML, tested in ChromiumMaking an image a link takes 3 lines of HTML. Here is the code, what a screen reader gets from it, and the fixes we measured.Sahadat Husain
- SizesStamp size photo, Passport size photo, Photo size in cmStamp size photo: the size in cm, in pixels, and how to make oneA stamp size photo is 2 × 2.5 cm, or 20 × 25 mm: 236 × 295 pixels at 300 DPI. Here are the sizes in cm, mm, inches and pixels, the one official rule we found, and real files measured.Sahadat Husain
- GuidesJPG quality, Deep fried memes, PixelateHow to make an image low quality, or deep fry it: testedWant a picture that looks bad on purpose, for a meme, a placeholder or a smaller file? Here is what each method does, measured on one real photo.Sahadat Husain
- GuidesBlack and white, Grayscale, iPhoneHow to make a picture black and white on any deviceEvery phone, Photoshop and Word can turn a photo grey in a few taps. Here are the steps for each, and what a black and white copy does to the file.Sahadat Husain
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