Một lập trình viên backend đã phát triển PixelSwift, một ứng dụng web nén ảnh hoàn toàn trên trình duyệt, ưu tiên quyền riêng tư và không yêu cầu tải lên. Đây là dự án frontend đầu tiên của anh ấy. Rất đáng để khám phá!
#PixelSwift #ImageCompression #WebApp #ClientSide #Privacy #Frontend #SideProject #NenAnh #UngDungWeb #BaoMat #DuAnCaNhan

https://www.reddit.com/r/SideProject/comments/1o41091/built_a_fully_functional_web_app_to_compress_the/

Any recommendation for an equivalent tool to pngcrush for JPG images? Or for other formats?

#imageCompression #PNG #JPG

"With the increased spatial resolution and number of spectral channels, each LandIS instrument is expected to generate up to 1.8 Gbps of raw science data, excluding embedded telemetry and metadata. Given the mission’s primary goal of capturing imagery of all land surfaces and inland water bodies, which collectively cover approximately 30% of the Earth’s surface, each LandIS instrument could produce nearly 6 TB of image data per day. The management of this large volume of data, particularly the storage and transmission to ground stations, presents a significant challenge for the mission architecture. Historically, the Landsat Ground Network has supported X-band frequencies with roughly a 384 Mbps downlink rate to transmit science data (Masek et al., 2020, Irons and Dwyer, 2010). However, with approximately 105 min of contact time per day, the available data transmission volume would be insufficient to fully downlink the expected daily generated data volume, leaving a significant portion of the science image data undelivered. To address this issue, a shift to higher downlink rates using Ka-band frequencies is necessary. With potential Ka-band downlink rates of 2.6 Gbps, and the same 105 min of contact time per day, the transmission of more than 2 TB of data per day would be possible. Although this represents a notable improvement over X-band, this Ka-band system still cannot accommodate the full volume of data generated by the LandIS instruments."

#LandSat
#ImageCompression

https://www.sciencedirect.com/science/article/pii/S0034425725003335?dgcid=rss_sd_all

I've always been a big fan of squoosh, the web app that allows you to compress an image in several formats without losing much quality, but it does not work properly on mobile — on iOS, at least.
That's a problem when I want to share pictures taken from the phone camera, since they are large.

So, unhappy with apps on the App Store, I discovered a-Shell, an app that allows you to run shell commands on your iPhone… including magick! ✨

So I spent too much time created a Shortcut that allows to:

• choose an image from Apple Photos app
• resize it and compress it (-resize 1500x1500 -strip -interlace JPEG -sampling-factor 4:2:0 -define jpeg:dct-method=float -quality 75)
• copy it to the clipboard
• (removes the temporary files, of course)

So the compressed image can be just pasted anywhere, e.g. on Phanpy. 🐘

Here is the Shortcut link for anyone interested: https://www.icloud.com/shortcuts/486776b73d554396a7ace51e18984a0e

#iOS #Shortcuts #Squoosh #ImageCompression

How JPEG became the Internet's image standard https://spectrum.ieee.org/jpeg-image-format-history

#ImageCompression #JPEG #DigitalPhotogaphy #WebHistory #photography #history

MakeUseOf: The Best Photo Compression Tools You’re Not Using . “Most compression tools leave your images looking blurry or they take forever to process. These underrated compression tools are fast, effortless, and surprisingly effective—and chances are, you’re not using them yet.”

https://rbfirehose.com/2025/05/26/makeuseof-the-best-photo-compression-tools-youre-not-using/

🚀 Level Up Your Web Images with AVIF! 🚀

AVIF, the next-gen image format, offers dramatic file size reductions—compress a 100kb JPEG down to just 8kb without losing quality! That’s over 90% reduction! 📉

✅ Why AVIF?

• Superior Compression: Boost loading times.
• Maintained Quality: Keep visuals crisp.
• Wide Support: Compatible with most modern browsers.

🌐 Embrace AVIF to enhance site speed and cut bandwidth costs. Your SEO and user experience will thank you!

➡️ Switch to AVIF for a leaner, faster website!

I am pleasantly surprised to find it is now supported across all the major browsers which got me excited to make this post. src: https://caniuse.com/?search=avif

#ImageCompression #Image #webdesign #WebDev #Website #AVIF #JPG #LossyCompression #