Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Implementation and Benchmarking of Perceptual Image Hash FunctionsThis thesis proposes a novel benchmarking framework, called Rihamark, for perceptual image hash functions. Subsequently, four different perceptual image hash functions were benchmarked: A discrete Cosine transform based, a Marr Hildreth operator based, a radial variance based and a block mean value based image hash function. pHash, an open source implementation of various perceptual hash functions, was used to benchmark the first three functions. The
This thesis proposes a novel benchmarking framework, called Rihamark, for perceptual image hash functions. Subsequently, four different perceptual image hash functions were benchmarked: A discrete Cosine transform based, a Marr-Hildreth operator based, a radial variance based and a block mean value based image hash function. pHash, an open source implementation of various perceptual hash functions, was used to benchmark the first three functions. The latter, the block mean value based image hash function was implemented by the author of this thesis himself.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 352 reviews
Sort
Product Reviews
★★★★★ 4
A sports romance debut that tugs on heartstrings!
Format: Kindle
“Unsteady” follows hockey captain Rhys Koteskiy and spitfire figure skater Sadie Brown after they enter a purely physical relationship to help them heal from their respective traumas. Their arrangement is meant to be temporary, but the more time they spend together, the harder they begin to fall.
I had been wanting to read this book for quite some time and was not expecting it to get me all up in my feels! Both characters have their own struggles that the other comforts them through. At the novel’s start, Rhys is recovering from a traumatic brain injury he suffered on the ice. I appreciated how seriously Sadie took Rhys’ situation and helped him through his panic attacks (mainly with music) while fighting her own demons. Despite the walls she puts up to distance herself from him, Rhys sees through her anger. He stole my heart with how in tune he became to Sadie’s needs and the way he stepped in to take care of her and her brothers after he learned of their living situation. The pining and protectiveness had me swooning. While the friends with benefits trope isn’t my favorite, I adored watching their relationship transform from one of shared trauma to shared love. Their opposite personalities truly complement each other perfectly!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
★★★★★ 3
Alright.
Format: Kindle
It was alright. A blend of shameless. (Literally Liam having a diff parent) and Binding 13 (Literally named Ollie) I wish the next book was Torren.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 17, 2025
★★★★★ 5
AMAZING Debut Hockey Romance!
T R O P E S
🏒 College Hockey/Figure Skating Romance
🏒 Cinnamon Roll MMC/Black Cat FMC
🏒 He Falls First
🏒 Friends to Friends With Benefits to Lovers
🏒 Found Family
🏒 Mental Health Rep
R E V I E W
I’m sorry. Excuse me. WHAT? How is this Peyton’s debut novel?! This book had NO BUSINESS being this good. IMMEDIATELY it is in the top 5 books I’ve read this year, and I’ve read nearly 125 books. I was blown away by how good this was and cannot recommend it enough.
This book follows Sadie, a figure skater who has a hard home life but is determined to succeed this year, and Rhys, the captain of the hockey team who took a hard hit in last year’s Frozen Four and is now struggling with getting back on the ice. These two are some of the BEST MCs I’ve read in a while! Sadie has so much going on, between her skating career, working 3 jobs, trying to get custody of her two younger brothers from their alcoholic dad, and school in general, this girl is stretched thin, but she is a power house - small but mighty. I loved her spitfire character! She is so guarded, but understandably so. I loved seeing her icy exterior melt for Rhys. And RHYS. I think he might be my favorite Rhys to date 👀 . He is the perfect Cinnamon Roll, but he’s also going through PTSD from a terrible hit and struggling. He becomes so obsessed with her and honestly, I’m a little jealous. (Let’s not forget about the mouth on this man though 🥵 .) I LOVED them as a pair and the angst and tension between them was spectacular! I love how they pushed each other and how well they matched. The spice between them was perfection as well! This was such a good blend of character development, plot, and spice.
I also have to discuss the amazing side characters. First of all, Sadie’s brothers are the stars of this show. Liam was the cutest thing on this planet and I just wanted to give Oliver a hug (but won’t because he doesn’t want to be touched). The way Rhys interacts with them and the whole storyline with them made me bawl. It was soooo good. Then we have Rhys’ family! His parents are magnificent and I need to know more about their story! And lastly, we cannot forget Rhys’ team. I cannot wait for more books about each and every one of them. They were all introduced so well and I KNOW there are going to be some fantastic stories told about them. I’m going to need this to be a series with all of the hockey teammates (Toren and Bennett both have me eyeing them up and I needed their books YESTERDAY). I’m also going to need a prequel novel about Rhys’ parents AND a next gen spinoff with Sadie’s younger brothers. This book is going to be a trophy I buy for my shelf so I can reread it and I will definitely be reading anything and everything Peyton writes in the future!
The mental health rep in this book was chefs kiss. We saw them both struggling with their thoughts and emotions, saw them using each other for comfort, and saw them both getting true help. I loved that Rhys recognized he was using her as a crutch and sought therapy. We need more mental health rep that is done like this!
Honestly, I cannot recommend this book enough. It had me laughing, blushing, and full on crying so many times. There was so much emotion, care, and love packed into this book. BRAVO Peyton on writing such a magnificent debut novel!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2024
★★★★★ 4
Love. Such a beautiful story!
Format: Kindle
Rhys and Sadie Gray meet at a point in their lives where they really need each other. Their initial impressions of each other are not that great and they start off on the wrong skates. These two are both struggling with their own issues and each carries their own stress differently. Rhys struggles with the aftermath of a traumatic injury while playing hockey. Sadie struggles with the weight of responsibility. Their story is not unique, but in this genre it's the first time I've read a story like this and it did not disappoint. It's such a beautiful story about love and staying steadfast in your conviction to stand by the person you love even when they don't think they deserve it and push back. The love Rhys has is unmatched and it reminded me of Johnny from Boys of Tommen. The author did an incredible job and I can't wait to read more from her.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2025
★★★★★ 5
Unsteady Review
Format: Kindle
This was my first book by the author and it did not disappoint. I loved how real and relatable the main characters were. From the mental health journeys they go on, and the things they deal with in their life. I felt like I could be their friend. I didn't want this book to end it was so good. It made me feel all the things: happy, sad, it made me laugh. And above all the representation of friendship in this was great! Will definitely read more of the author's books!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026